Drivers have been warned not to get caught out by hidden supermarket car parking rules which could see them unfairly fined. For most supermarket car parks, parking is free for an allotted time frame, however, for pay and display sites, the rules can be different, especially if it is close to a town centre. To avoid the fees for on-street parking and public spaces, some drivers are resorting to using a supermarket bay instead. When arriving at a supermarket car park, there will be signs that clearly state the time frame drivers can park there, which usually varies between a few hours. Do you ha…