I'm sure its one of those tickets where all you have to do is go contest it and they will drop it. Basically they are revenue generators because people will pay the fine in order to avoid a hassle. I got a parking ticket on a sunday because they started construction on the sidewalk during the time I was away from the car. It wasn't worth the 45 bucks of my time/effort/gas to go down on a thursday to contest it, so I just paid it and was pissed for a while.
Anyways, back to the subject....