I would think the only problem would be the pits. I'm pretty sure they will get this taken care of. I've seen them in the past just push the mud up into a pile in one end of the pits, leaving the rest of the pits useable. This was quite some time back and for a big late model show.
I'm sure the pits will be sloppy...so just prepare accordingly. We all know this is a DIRT track, so you're gonna get dirty. If they let sprints pack in the track it should be really nice. However, I'm sure they're packing it with the big water truck. Hopefully it stays somewhat smooth with two racing grooves!