Was that the lot just north of the start/finish? Across from the Union? I almost parked there, but I *did* see the line about staff all other times and decided not to chance it. Parked far away in the big lots by the track instead, which was a miserable slog there & back. But now I'm very glad. Sorry you ended up with such an expensive outing. :-(
Yea, I wasn't happy as I walked up to my car and saw the paper flapping in the wind. Oh, well. After I went back and re-read the sign, I saw that it was completely my fault, so I paid the fine online and was done with it. My small donation to UMd.