I drive an 03 audi a4 3.0 in black. I went to the BP at around 8pm so it was pitch black. I went threw the car wash and it was touch-less so no scratches or any of that. But when I woke up the next day in the sun I could see little white marks all around the car. I dont know if its soap or water. I got a new car wash today and most are gone but some are still on the hood. What are these marks and what should I do to remove them?