Are large buses allowed to drop off people at the stadium? Is there a charge for doing that?

Nope just for the one van/bus

Yes, there is a charge for a bus to get in, but they do it often.

Prob want to get dropped at the entrance to the gate otherwise it will take way longer or come about 2 1/2 hrs early

You need a parking pass if its going to patk. But if its just dropping off and parking elsewhere until game is over I doubt it but i would difinitly call first.

Yes, not sure on price.