Spectators for RTTH

[SRD art]

I'm too late getting the car ready and get registered for this year but Joe (from Bulldawg Musclecars) and I are considering heading up in the wagon on Saturday just to watch and mingle. I skimmed over the website but didn't see anything about spectator pricing. Can someone tell us how much and what time we should get there? We're about 4 hours away and don't want to miss much...