If you wait under the South stand outside the players entrance they will all come in separately having parked their cars about a hundred yards further down towards the Kop end. They have to come in the players entrance being the one and only for the players. This happens roughly between 1pm and 1-15pm as the deadline is 1-30pm. Anyone arriving after this time would be in trouble with the club and FA.
Mountain Owl's post in Did Westwood Know was marked as the answer