Brad, I don't know if you've ever run Autocross before, but I'll give you a quick rundown on a few things you should check before you come out.
Helmet: Local requirements are Snell M2000, M2005, SA 2000 or SA 2005. I believe the Saratoga rules are the same.
Safety Belts: OEM seatbelts should be in good working order. Harnesses are ok.
Solidly Mounted Battery: The battery must be held down properly. If it can be moved at all, it will not pass.
Legal Tires: In Stock and Street Prepared categories, the tires must have measurable tread, and must be in good condition. Excessive weather checks or visible cord/plies will fail inspection. Tire pressures should be higher than used for the street, and 40 psi F/R is a good place to start.
Brakes: The brake pedal must be firm, with no loss of pressure when held down.
Steering / Suspension: The steering must be reasonably tight, with no excessive play. Wheel bearings cannot have excessive play.
Hub Caps and Trim Rings: Hub caps, trim rings and wheel covers must be removed for competition, unless they are bolted to the wheel.
Loose Items in Car: All loose items must be removed from the passenger compartment and trunk. This includes the floor-mats. You may remove the spare tire and jack, but you are not required to if they are properly secured. This can all be done at the track, there should be some extra space in the pit area to unload your car.
Fluid Leaks: Excessive fluid leaks will not pass inspection.
Numbers and Class Markings: Shoe polish or tape (I'd reccomend painters' blue) are both good, although not all clubs require numbers.
Adequate Muffler: Your car must be quieter than 95dbA (RLS) measured 50 feet from the course at a place where you are under full throttle. Due to the possibility of losing sites for noise problems, this rule is strictly enforced. (If your car is quiet enough to avoid attracting Police attention, it will most likely pass the noise requirement)
Throttle: Accelerator pedal must have a return spring and operate freely.
Things to bring:
-Entry fee, in cash (They may not have debit)
-Driving shoes, or something suitable.
-Rain/Cold gear
-Lunch
-Tire pressure guage (I carry one, use it if you like)
-A notepad and pen are often useful as well.
-Some chalk (or tire shine, alternatively) for marking your tires to guage sidewall rollover. Not neccessary, but it easily tells you the difference that a few PSI makes when adjusting tire pressures.
If you want to do a more thorough read, i'd reccomend:
http://www.tirerack.com/features/solo2/handbook.htm.