Does anyone know when we can get into RA to camp for the night after the AMA races on Sunday the 6th? Is 6 PM a safe assumption if the last race is scheduled to start at 3:45?
I would call RA and see if they can work something out for you. It may not work, but asking nicely can't hurt. There is also Plymouth Rock RV resort right near the track as well. Probably overkill for what you need unless you have kids along.
I'll double check, but they've refused entry on Sundays before to everyone except the director of the event.