They were pretty strict about starting in novice last year if you've never been. You can try to sign up as I but understand they may stick you in Novice for the first session or 2. The only way around it was if you held a race license of some sort.
Other helpful advice -
Garages are $50 for the day and come with power. They can fit 4 or so bikes.
They have water bottles, but they disappear not long after lunch, bring your own.
Lunch is provided, the caesar salad is pretty good.
The bathrooms suck (although I heard they were re-doing their facilities for this year?), poop before you get there if you can manage it.
If the track is damp/cold, be REAL careful or just wait for things to get better. It is as slick as people say it is under less than ideal conditions.
To be fair, the fast novice group is faster than 50% of I group...