I'm sure Hammer could more accurately address this, but assuming you're on the list, you should have a large, easy to read sign in your front window so those directing the parking can easily identify you as a TBD person.... You would pay at that point and follow instructions to your parking spot. As far as getting there, if you get there early enough, you can follow Southwestern to Abbott and get to the lot, but the shut Abbott down (at least the did) prior to the game. I would suggest just using Big Tree to be safe...