Just change one digit on your number plate.
Works for m50 toll as well.
heheh
De Brother didn't realise for about three years that his cars number plate was in fact that of a suzuki 80cc bike . Previous owners had altered a digit and and it never got copped . until we were getting the ferry in the car .
Yerman at theferry port musta been convinced we were going to collect a shipment or something .
Last on the ferry and all over it !