Thank you for your comments. It does seem odd that people are travelling many miles for relaxing!, and having a caravan behind would still seem to be in align with the rules providing you do not stay inside overnight. Just recently because we have been in lockdown apart from this trip relatives have been keeping us up to date what is happening. One instance is one of their neighbours who only the husband goes out for shopping decided to take the family to Hasting , this was a round trip of 180 miles.In light of the present government regulations concerning travel. I would suggest you have been lucky on this occasion.
It would be very unwise for others to assume that your experience is the way that all attempts to get a caravan serviced will turn out until travel for non essential business is concerned. follow the regulations in place for where you live.