When we got to where the Q's for P & R ended those wanting to go the Coach Park steps were being pushed into the small path against the embankment. The path is separated from the main walkway around the stadium by a hand rail/crush rail. This is where the pinch point was as everyone was being pinched into no more than 2 abreast. After some time either Police or stewards realised that people were in distress and allowed the opening of the main walkway up the south stand entrance where the Police Horses and dogs were.
Exactly my experience too.