Yeah, I read their website, but k also know that signage is what's important. I didn't bring anything more than a knife (they have to tell me not to bring that...), but I didn't see any signs posted. Enjoyed an evening of Legends Car races and a nice fireworks show.
FWIW, I always had my SR9c in my backpack when I was in the Nationwide Series in 2011, unless our destination was or went thru places I could not legally have it (NY, Canada, CT, IL, MA, MD, etc.)