I'm not sure, for handicap it might be smart to buy ahead of time. But i'm not sure they keep track of that when they start letting people in. I would get there early, at least 45 minutes early to get one of those spots because there isn't that many.
Parking, especially on the south and west sides of Reed, might also be a little bit thrown off by the Softball game this weekend against Texas Tech. I'd try to park on the North side of Reed for sure.
Handicap parking does fill up, especially if you want lot 102. I try to get there at least 45 mins before tip, but I also want to get in before it's crowded