When we went earlier this year we lucked out and they let us in earlier in the day without issue but also they were letting people park their trailers and such on the lot just to the left of the entry gate so they could go about the town and what not until it was time to come back and enter. Maybe you'll luck out man, if you don't ask you don't get lol. Granted also the paddock wasn't full at all since the only ones running at that time were the Ferrari school people and they have their own paddock side including garages. It will all depend on whether there are certain people testing or not, if there is nobody then there may be a good chance they may just let you in to park the trailer and come back out so that way you get a good spot. Best of luck man and have fun out there fellas.