reply may be to late, but I did try and search the RHL site and I can't find the info on pkg. They used to have the info there...If sonick were still around....but I digress.
The few times I've been there, I've always parked at RHL. Last time, he told me park at the pkg lot for the school on the corner. He said it was cheaper and easier to get out. I think I paid $12? The payment / card machines suck but someone will help you - they are manned 24 hrs.
Either way, bot at least $10+.