99 Trinity St Parking

 - I was mistakenly told that parking was free on Sunday. I parked in your lot but saw no signs indicating monthly parking only? I even went back to see if there was somewhere to enter my card. I am an RN and seldom go into downtown Austin. It was an honest mistake. The parking lot had one car at 6 pm on the Sunday I parked until 9:41 pm. I then receive a letter from PRRS stating I owe $92!!!! I did some research and the monthly rate for this lot is $226.50. $92 appears to be price gouging considering there were number other places for $6-$20! PRRS came back and said I could pay $72. Still outrageous for an empty, uncovered lot. thank you