. So, it doesn't really matter because the LEO will probably expose you. I don't think a note will do any good and may cause you problems with trying to explain to the officer that you are not being held hostage or something by the passenger. My wife spent 20 minutes explaining that to a DPS officer near Dallas a few months ago simply because the officer didn't trust my brother-in-law was telling the truth. Getting out or passing notes is not something I would suggest. The officer is on alert anyway and you don't want to up his/her level. I have no answer as far as how to keep a passenger from knowing you carry. The only option I know of is to unload your weapon and separate the ammo, lock it up and put it in the trunk. Then, your not carrying but traveling under fed law and don't have to claim the weapon or show your CHL. That is not something I would want to do. I say, risk it and take the hit. Your company can fire you but you can also get killed because you are afraid of how someone might react. I would suggest, like others, that you limit those who ride with you to those who have the same beliefs as you. If you don't ask, you don't know. The person riding with you might be packing too. It isn't hard to find out how someone feels about something if you are smart about what you say and how you say it. "Brother wants me to go to the gun range some time." or "My buddy told me Obama is threatening the NRA because they are telling lies about him.". I have never gone "fishing" without gaining some info about someone. Small talk can reveal a lot for those who actually listen. Good luck.