Dream, you are half correct.....the reason you do and say all that stuff in the car part is to cover yourself. If you asert your rights then you can bring that up in court, and with a decent lawer you can show that your rights were infringed. Also if it's only MJ then and you really want to bring up the Bill of Rights and the Constitution you can say/show how MJ being illegal is Unconstitutional even though it's a "law", I'm shure that if you play your card's right, as well as asert your GIVEN/ENTITLED rights as, an AMERICAN that is free to make your own choices, that don't infringe on any other AMERICAN'S rights, And SMOKING/VAPEING/EATING/LOVING MARIJUANA is not doing any of the latter.

But I said half correct because if you don't live somewhere where argueing your political views can get you somewhere( like where i live )then you better hope that the cops arnt compleat assholes and they follow the law as well.