i would highly doubt it was an act of malice, if this guy parks in the room he has to know that A) if he messes with your stuff, you are more apt to mess with his stuff, and B) he must know there is video surveillance in the room, doubt he would risk such a great privileged parking location just to mess with you.

maybe next time you bump into him he'll be like "i was checking out your light set up, and i couldnt turn them off, let me buy you new batteries/ a beer/ whatever" i wouldnt assume the worst just yet.