Glasgow parking wardens patrolling areas around Celtic Park and Ibrox on matchdays have been warned to leave the area before games finish for their own safety.
Attendants are in charge of carrying out enforcement on match days at Hampden Park, Ibrox and Parkhead, issuing tickets to any motorists who break parking rules.
For most events they are due to start two hours before kick off and finish an hour after the end. But it is a different matter for matches involving Celtic and Rangers.