<human>: I had a run-in with the local police for being on my friend's roof i wasnt supposed to be on. Got frisked for drugs, nothing found. I was questioned about some graffiti that was up on the roof, but they eventually let me go after taking my info. The kicker is, one of my friends, an artist, did the painting, and asked me to go over it with glaze to make it look nicer. This was caught on video and turned in to the police. I need some advice on what to do in case of another encounter. Also some knowledge on what could happen would be helpful.

Provide a brief overview of the text.
<bot>: I helped do some graffiti on a building, someone got it on video, sent it to the cops who know my name and address.