Lol, now I'm not suggesting that this is your problem, but it reminded me of mine. For the first few days of driving my GTO, I would hear a small squeek while driving slowly. It was most pronounced when I would lift my foot off the gas pedal. I didn't hear it at all while accelerating aggressively, and I pretty much only heard it in the mornings for the first couple minutes after leaving my house.
After a couple days of hearing this I figured out that it was the side of my shoe rubbing slightly against the rubber insert in the carpet next to the gas pedal. I walk through a portion of the yard to get to the garage in the mornings, and my shoes would get a little wet from the dew on the grass. Talk about feeling stupid.
