We went for a week in March, and have had a £100 and a £60 fine. The £100 one was for going over the ticket time by 7 yes 7 minutes, and the £60 was for driving in, deciding it was too windy to walk and driving out again........ but we didn't get a ticket.
This was St Michael's Mount, Marazion and Fistral Beach. DH is apopletic with rage over it all.
Thought I'd pass a friendly warning on.