What are your thoughts on automatic car washes, parcitularly ones that have that polish or gloss or whatever it is they drip onto your car and rinse off? I went to one because my car was really dirty and it's cold so I didn't want to hand wash it. But as soon as the water picks up, I need to do the whole hand wash + wax/polish it. Do I need to do anything special to remove whatever polish the auto car wash puts on it? Also, what is the best way to dry the car... chamois, some other compound towel, terry cloth, or water blade?