I definitely am planning to position myself near our few downtown colleges. The problem on the University's campus is that they've got an exclusivity contract signed with their awful national catering corporation, so I wouldn't be able to get on there (I know, because I argued against the contract when I went to school there...hah).
You'd be amazed how much occurs outside the thumb of the university proper. Professional and student groups often meet outside the bounds of the campus proper; pick the right ones, and you can get great exposure.
Or you could throw a few cartons to the Rotary meeting. Couldn't hurt.