Couldn't get in contact with someone on craigslist...so my roommate and I went to a bike store we passed by earlier, but they don't sell used bikes. But the employee who was repairing a bike was nice enough to tell us where the Salvation Army store was...and that's where I got the Schwinn Le Tour II for $50

(was 69.99, but the employee offered $50...pretty cheap for being in SoCal)