Just an idea: up the road (north) a bit from the U is a really great bookstore/coffee shop with a pub downstairs. Free parking! They have tea and baked goodies, too. Ravenna Third Place Books on 65th and, umm, something... (psst, it's 20th)

here we go:
http://www.ravennathirdplace.com/

This is one of my favorite bookstores, they sell new and used books, and their coffee shop area is cozy. Haven't tried the pub downstairs yet.

And they are open until 10 pm on Thursday night.