Exactly killerweed, don't try and instigate the situation like some do and think they can get away with it.
A couple weeks ago I was at the gas station and bought a shitload of munchies for me and two other people. Right when the cashier is bagging my stuff a cop looks over from the register beside me and says "Munchie food huh?" I kind of laughed it off and as I walked away he said good bye.