In reply to simon1965: Clamping is still happening.
Once you turn left off the main road you are supposedly entering a private industrial estate and will be clamped if you park anywhere (sign or no sign).
I was in the car park of a vacant industrial unit... no signs within sight, and was still clamped.
Further down the main road on the left (just past the kart racing place) is a layby that seems to be fine, no-one was clamped there today.
The clamping guy said they did 80 cars today, at £90 a pop, thats a tiday packet they're making.