Arrived early as only travelling a short distance from a site that we had to leave at 11am. Had checked if OK and informed would have to queue at gate if early. No objection to that. However, we failed to notice the new arrival sign and parked up on the entrance We realised our error and was about to move in case of incoming cars, ( of which there were none) when the warden appeared. We apologised but were nonetheless forced to reverse the van when the warden could have quite simply opened the 'wrong' barrier and let us through, He was over officious and if we didn't know better, we would have found the image of Caravan Club Sites quite intimidating. We do not break rules, we merely made a mistake. The site itself is in a good location but not very inviting to linger on.