I was stopped last night by an officer looking for a robbery suspect driving a similar vehicle. With that fresh on my mind, I fhought I might as well pass along a few tips -- most of which, I hope, everyone's already fully aware of.
Stop your vehicle soon, but easy and in a safe place both for you and the officer. You don't want the officer distracted by dangerous traffic around them if at all possible. Roll all windows all the way up except for the driver's window, which should be rolled up about two thirds. Leave your seatbelt buckled. Turn the engine off, and if you think of it, put your keys on the dash. Make sure that your hands are both clearly visible and on the steering wheel. Do not move your hands for any reason without first asking the officer if they would like you to do something specific with your hands, like retrieve a document. Here in NC, the law states that concealed handgun liscencees must immediately identify themselves and must have their ID and CHL card on their person whenever carrying a concealed handgun (that includes a gun in the glove box or otherwise out of view). Matter of factly inform the officer of your status and the location of any and all weapons in your vehicle. Other CHL carriers present with you must also do this immediately -- not just the driver. Wait for the officer's questions and instructions and clear all physical movements prior to making them until the officer tells you he's moving on and returns to his vehicle.
One of the nice things about being a CHL holder, incidentally, is that officers know these licenses are not issued to those with criminal records unless by some carefully considered exception. Once they've seen your card, they'll probably feel reassured that you won't pose a threat, will cooperate, and most likely are appreciative of the efforts of law enforcement in general.
Remember that you don't have to be a bad guy to accidetally get killed by a police officer. All it takes is the wrong circumstances, poorly handled by yourself, the officer, or both of you. We had an incident here in coastal NC some years ago now where a pair of military trainees on an infiltration exercise out in the general population managed to get themselves shot and killed by a sheriff's deputy who was spooked when he discovered a partially disassembled military issued automatic weapon hidden in the vehicle. Obviously, something else went wrong in this incident, but it really underscores the need to telegraph compliance and to communicate very clearly, plainy, and respectfully with law enforcement at all times. If memory serves, I believe those military trainees mistakenly thought the officer was part of their training program and acted aggressively toward him. Again -- really poor communications. The officer didn't have a clue what was really going on, and neither did the men he believed intended to murder him. It was a tragic accident, but we must make our own "luck" if we want to reduce our risk of becoming sad statistics.
And so long as I'm on the general topic -- be extremely careful with your body language if you ever have to transfer a man you're holding at gunpoint to officers responding to the scene of your emergency. And old friend of the family and I had to do this once and we were later praised by the officers for the manner in which we transferred threat possession of the suspect. Having been told by an unarmed member of the family who flagged the officers down and accompanied them into the house that the officers were coming in, and hearing them behind me, I kept my eyes on the suspect, took my strong hand off the rifle's grip area, slowly raised that empy hand into the air in clear view of the approaching officers, tipped the rifle muzzle down with the weak hand on the forend, and slowly turned to allow the first officer to gain line of sight on the suspect. As the officer neared to pass me in the narrow area of the room I informed him that I was going to put the gun away. I then slowly and cautiously left the immediate area, secured the weapon, and got out of the house to wait with the rest of the famiy outside until after the suspect was in cuffs and in the patrol car. I never looked the officer in the eyes. You want your eyes on the suspect until the officer has his/her eyes on the suspect and seems to clearly understand that you are not the threat. I feel that keeping your eyes on the suspect also telegraphs your trust in the officer and helps direct their vision to the suspect. It must have also helped that I looked clean cut and the home invader was covered in Mexican gang tattoos.
I credit my response in this incident largely to having read one particular article in a popular gun enthusiast magazine when I was in my teens, but can't remember the officer's name who'd written that article or even the specific publication. I wish I could, because I'd drop him a line to thank him.
Again -- having a plan to avoid confusing responding police officers and using clear deliberate verbal and postural communications are really important when you've got amped-up officers walking into an unknown with their guns literally pointed at your back.