Just curious, was it on the street or parking lot? The only time I got keyed, it was in a parking lot near the front entrance of the store (lots of foot traffic) Now I always park in the outer perimeter of the parking lot away from the other cars and delinquents on foot.

BTW, ever park way out there without hardly any other cars and return to find a big SUV next to you? I think they do it to mess with our heads.