Roads Act 1993
F68 [ Offence (service areas).
54B. — A person who, without lawful authority or the consent of the Authority or the road authority concerned, as the case may be —
( a ) defaces (by writing or other means), damages or excavates a service area provided under a motorway scheme or service area scheme,
( b ) places or deposits any material or thing on a service area which is a hazard or potential hazard to persons using the service area, or
( c ) obstructs or interferes with access from the public road to the service area,
is guilty of an offence. ]