I'm not sure about the general parking but with premier parking yes you can tailgate. Parking overall the would great super easy and convenient.
VIP includes parking on the right side, facing the building.
You need a separate parking ticket
So as long as you're not being obnoxious and you have tickets to the show I've never seen them hassle anyone, we've tailgated at a few shows but we also try to get there early and park together so we aren't bothering anyone, the only time I've ever seen anyone booted out was there was a group of kids being loud and security had the police toss them for not having tickets, and the cops busted a couple of dudes for selling bogus t-shirts, which kinda sucked because they were only $20 bucks and better quality than they were selling inside for $40 bucks, don't get me started on that though lol
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