Don't feel bad, back in the UK there are more cameras on the road than cars
I was "victim" to them in Edinburgh years ago as well...just part of the game
The speed one are even worst, usually the cops set them up with only 1 miles difference, so even if you are driving with 31 on 30 miles zone you are still done for "speeding" and in the UK points for speeding on your license can increase your insurance for the next 3 years for up to 40%.