I park it against a busy road with a lot of teenagers that pass to and from to school. My co-worker has had it done twice in the last week, and we weren't sure if it was at his house or while parked at work. Today confirmed that probably some airhead teenager (just an assumption) did it.

Never had something done like this to my car. I hope the person who did it has karma returned sometime in their life. Grrrrrrr.