I grew up racing Capitol in the 70s.
The track itself is actually kept in fair condition, but the TnT events are, as stated, ricer and crotch-grabbing gangsta wannabes. I wouldn't leave a thing unattended at that track. Ever.
For a track rental, you should be fine, although I'd ask what the rental cost got you in terms of prep. Keep going south on Rt 3 past the track. After several miles and going under the rt 50 access ramps, there is a hotel off to your right in that shopping center complex. Don't recall the name but it looked decent enough the last time I was down that way.