There's a hotel a couple blocks north of the velodrome. Hampton Inn? I forget. Stay there. Get burritos from El Burro, and if you can talk them into selling you a beer to-go, then you're a smoother talker than I am.
Proximity is a great asset here. The less time you spend packing your **** and taking it to and from the track, the more time you have for rest and recovery. If you can restrict your life to as close to the track as possible (doable - there are a few decent places to eat and a Walmart which has groceries, all within spitting distance of the track) - and not involve a twenty-minute drive back to your AirBNB - then that's 20 more minutes for better food, for getting there without stressing out, for moving your bowels, or for winding down in the evening and getting good sleep.
Track sessions are long. There's a lot of waiting. If you can quickly pop back to your place for an afternoon nap, then you've got a leg up on the competition.