Thanks to the folks at Zip Zap, I have had the noisiest, squeakiest brakes that I think I've ever heard. I went in to get an air conditioning service, they told me I needed new brakes. I knew that I was getting close to needing them, so I just had them do it. What a mistake that seems to have been. I wish I could post audio of the brakes. Also, not sure if it was coincidence, but my AC crapped out a few months after they serviced it..