buying tickets

Hi y'all...I'm coming up for my first trip this weekend. There are four of us going, three of us have tickets already that I got offline, but my cousin is getting his ticket at the park because of his military discount. My question is: can we buy tickets/ free military passes (for Sunday since it's the Memorial Day special) on Friday night for going to the park on Saturday and Sunday?

Unless you're getting something like a 2 or 3 day ride and slide ticket, I believe you'll have to purchase one each day that you're there.