I'm sorry I didn't see this post last night, I was out canvassing then quite tired...hopefully you've already found out these answers.
I do not know if there will be printers onsite, but after all, it is a campus, and the student union is right next door to the computer center (or at least used to be, when I went there). There will undoubtedly be at least a few folks there with laptops. The student union is likely a wifi hub. So, someone could read your work ahead of time potentially, or see your art ahead of time potentially. Contests close at 7, and winners will be announced at 7:30. Thanks for asking, and best of luck!
If you miss this set of contests, enter the MEW contests!
We hadn't set any criteria; I think the idea for this con was mostly art and fics that would be created on the spot....However, if enough folks want to submit pre-written fanfics, I'm certain our panelists would be delighted to improvize!