Just an FYI:
I was at the Zoom Zoom in Englishtown on Sunday. My husband was signed up in advance but when I got there they had me sign up also. Apparently everyone has to sign up and show proof of age to get in. So, if you're not registered you can do so at the event.

We got there at 9am (we were scheduled for 10:30) and just started driving. There was no waiting until your scheduled time.