One word of advice.
Get there early, preferably when the gates open. Traffic backs up fast and the line gets long, especially if it is nice out.
2 years ago I sat on the Interstate on a motorcycle, in shorts, with all the exhaust on one side of the bike, and with the temps already in the 90's at 9- 9:30 am for about 1/2 hour (stop and go). Once there parking was a bear with a 15 minute wait in line to get on bus and another 15-20 minute wait in line to get through the gate.