Bringing alcohol into a race track is an enormous debate. i have seen weekly race tracks collapse because they insisted on "changing" their cooler policy's. a track owner needs to look at the fans coming through the gate closely and determine if they can afford to tell people as they walk up with a cooler to turn around and drive home, because it will happen.
when i was in my early 20's it was 1,000,000% necessary and required. we would not consider going to a race track that didn't allow us to bring in a cooler the size of a coffin. Now that Ive passed my 50th birthday i don't even look or care.
Terre Haute is ultimately run by a committee. fair boards normally don't listen to the customer well and will go out of they're way to make it hard on a poor fan to come in sit down and crack one that you didn't buy from them