John,
If it were me, I would stay in a hotel. The camping can be on uneven ground with dusty and dirty conditions. The advantages to camping are that you are always located at the track. Read the following
http://www.roadracingworld.com/news/article/?article=26532
Although it is MotoGP, a lot of the same conditions apply.
Dave
P.S. I am back at the Porsche as the house is almost done. The airbox fix is in progress. It was blown all around the seam. I will follow up with a post to the original thread.