Actually I have the exact same problem. I can let the car sit for 1/2 an hour and the sqeaking will come back. Usually after about 1/2 a mile it goes away. I have the Stazi breaks and they have done it since day one. It seems worse when the weather is cold. When over 90 degrees the squeak goes away after a few hundred feet. When wet, like after a car wash or rain they don't sqeak either. Since it goes so soon after I start driving I have been too lazy to take them off. It does seem to be the rear brakes, but happens even if I leave the parking brake off, so I don't think they are dragging. If you find a solution please post it as it has been driving me nuts too.