I got caught in Wiltshire at 72 in a 60 so as this was 20% over or less then I could as I had a clean licence opt to go on a course which if you then do not have another infringement in 3 years - phew - never get the points on your licence!
So I did, got a nice keyring with a 30 speed limit roundel on it I use for my Mog.
Fortunately I was overseas for the next three years!
Looks like a nice thing they got going in Wiltshire a load of 36ers in 30 limit types on the course I felt like a real criminal but I drove over there on a nice day in the Mog so got something out of it!