Pay to park as close to the track as possible. Across the road is great. Stay out of lots that will get you blocked in. Be on your way out of the stands when the checker flies and move! Dont waste time getting out. If you cannot do this take a grill and chairs and cook after the race while every one else is sitting in traffic.
Or better yet cook before the race, eat, and take left overs inside with you.
Pay attention to the cooler and bag rules.
+1 on the ear protection. Bristol is the loudest track I have ever been to and I have been to several. I think its the loudest track in the world.
Bristol: The only track left in NASCAR where they actually still race.