I've just received a £90 fine for staying longer than 2h at Annandale Service Station! A fine from the local council for a real parking offence is cheaper than that. I'm not sure why they think it is a good idea to slap an extra charge on families who have already spent a small fortune in their bloody service station. Because the people who are hit by this are families like us with small kids, including a baby that is BF and in nappies (and there is only one nappy change facility which you always have to queue for).
Our local supermarket have a charge if you spend longer than 3h in their carpark but at least there there is somewhere else customers could go, but in a service station all you could possibly be doing is spending money in the service station.