We stayed for a long weekend in our Motorhome. The site is not ideal for a motorhome user as the bus stops in any direction are over a mile away and the route involved either crossing a dual carriageway or walking down country lanes without pavements. The site overall was very good. We did not leave the site with our motorhome until departing and stopped to hand over the keys. Unfortunately it was not explained to us on entry that the key only opened the barrier on the way in and that it opened automatically on the way out. We tried to use the key to open the barrier to leave the site and opened the In barrier in error.This caused an uncalled for very irate rant from a member of staff. Which made us feel very uncomfortable.