Richmond & PArking Wardens

Had to travel to Richmond today for work. They are renowned for their pretty much anti-car policy. They were the borough that attempted to ban 4 x 4's a while back...anyway I paid £6 to leave the car for 4 hours, however I thought it was £6 for 6 hours. I was therefore a little annoyed to find that on my return I had a nice parking ticket as I was 9 minutes over the allotted 4 hours! This will now cost me £40! Bloody parking wardens!