Send them a photo of your car with a sign in the back window (assuming that they took the photo from the front) saying "This car is a photographic prop. Photographing this car will cost a standard fee of £200. The act of photographing this car implies acceptance of these terms and conditions".
Add in an invoice for £200.
Surely this is every bit as legal as them claiming that parking there implies acceptance of T&Cs.
Add in an invoice for £200.
Surely this is every bit as legal as them claiming that parking there implies acceptance of T&Cs.