Thank you all! I'm still on the hunt for barns, but there's one relatively closeby that I need to check again. I used to take lessons there when I was really young, but when we first got Frosty it was full. I'll check now to see if maybe there's a stall. Wish me luck!
To Jessabel: I think my horse would become clinically depressed if he didn't get grain with everyone else...He's a food monster. Also, if I thought putting a grazing muzzle on him was hard, I'd like to see someone try and get the BM to feed him nothing. If you can do that, you're a miracle worker (we had that discussion last year when Frosty gained so much weight; She flatly refused and said it was cruel, etc. When he was on normal grain she overfed him, despite us telling her he only needed like a cup a day to be fine).
To NoniPony- I've decided not to bring him with me my first year simply because I want to get used to it first. I'm going into pre-vet/animal sciences, which is a demanding major, so I need to scope it out before I bring him up and discover I have no time. But I do know there are barns near both colleges I've applied to, so eventually I think he'll be able to come with me. :)