I am still expecting problems based on everything I have read online, such as being told that I could easily have removed the tow bar, that the cameras are not designed to pick out anything other than the digits/letters on the number plate etc.
At the end of the day though I have a number of different things, albeit individually small, that mount up to fair argument IMHO that the car being photographed is not mine.
The crunch will come if the safety camera units refuse to accept my reasons for the car not being mine & proceed with prosecuting me in court.