So yesterday after washing/waxing my MS3, I took her out for a cruise. When I got back into the garage, I waited 30 seconds and then turned the car off (like always). As I get out of the car and start walking towards the door, all of a sudden it starts making a noise like the air conditioner inside of it was just turned on. It sits there and does that for about 5-10 seconds and then stops. WTF?