I was out at Pocono once, and there you MUST go to every event, probably for the same $$ reasons, and the fact that you never know which way the clouds will go out there. Anyway, we had about 20 minutes of track time and it poured after that. We were still out on the track, but brought down to 80 mph. So there I am, out on the back straight of Pocono in my ******* RT/10, drenched. I laughed at myself for even being out there, packed up and left. But that's the way it goes. It's the price we pay for track time.
Good luck.
AC