Let's keep in mind, that based on the OP, the scope of our conversation is constrained to when one is in a car and has been pulled over.
To me, this means RAS already exists for something. Personally, I am going to go out of my way to be courteous in this situation. That doesn't mean I'm going to give up any rights, that just means I'm going to be as polite and courteous as possible. Obviously this is just my opinion and as long as you are not "carrying", you are free to do as you wish.