We parked in front of the National Geographic Museum and fed the meter on Dec. 30th at 4:25 PM. When we came out, we were very upset to find a $100 ticket on the windshield because we still had thirty minutes on the meter. After looking at the ticket, it read PM RUSH 4PM-6:30PM after which we found a sign high in the air fifteen - twenty feet behind our vehicle. We were the last one in a line of at least ten autos with no one else having a ticket on them. It seems that we were singled out to get the ticket possibly because we were out of state or that we were the last in the line. ???? Is there any point in contesting the ticket? I did take a picture of the meter showing that we still had time on it along with our license plate.