Something similar happened to me once. Me and one of my gal pals were smoking out in this park, and a cop pulls up, and yells out the window, "Are you girls smoking pot over there?". Of course, we said, "no". The joint was under my friend's shoe at that point. Then, he says, "Well, I don't care if you are or not, but I'm looking for some vandals that have been causing trouble around here. Have you seen anyone else about?" We said, "No, officer." Then he said, "Well, good. Keep that shit hidden", and drove off. I thought I was going to have a heart attack. lol