Geeez... they sure did stick you in a crappy hotel, didn't they.
Just down the road from you (away from the highway and towards downtown Cary) is the Harrison Bar and Grill. 301 N Harrison Ave.
It's not a brewpub (they don't brew themselves), but they are part of a local chain of places (
http://beerandburgers.com/) that are scattered around the grater raleigh area. They usually have a decent selection of stuff and the food is decent.
Here's a link straight to their beer list:
http://beerandburgers.com/HarrisonsBarGrill/BeerList.aspx
edit: if it weren't valentine's day, I'd meet you there.
If you want to venture further from the hotel, it really doesn't take a lot of time to get to downtown Raleigh since you are right there off I-40. Several breweries downtown, two of which (Boylan Bridge and Natty Greene's) serve food.