Unfortunately there's no tire service for NCBike events. Collin only supports Mid-Atlantic tracks (as far south as Summit), and NCBike is too long of a haul for Chuck at PerformanceCycleWorx to make it. Can't blame him as it is an 8+ hour drive each way.
That said, NCBike is a nice track and well worth the trip. If you do plan on setting up on the pavement instead of the gravel paddock, I recommend bringing extra extension chords as it could be a bit of a ways from the nearest power box depending where you can get a spot. Unless of course you're running your own generator.
Cheers,
Mike