I experienced sudden and unintended acceleration as I sat outside my garage idling with my foot on the brake waiting for the garage door to open. My car accelerated forward through my garage door and into the garage. It swept aside a refrigerator, freezer and a 700 pound safe that was bolted to the concrete floor. It finally stopped upon pushing several things against one of the I beams that hold the steel building up. The car also tore out the I beam support the side of the garage door upon entering. The tires continued to rotate until I turned off the engine.