Speaking of car washes, in this county the residential drains go to the public water supply so it's not allowed to pour anything down there (Including soapy water).
So I got back from a rallycross and the car was filthy! I took it to a car wash and paid $5 for the cheapest one just to rinse it off. There is a guy with a brush before you enter the automatic wash part and he goes about scrubbing the front and doors. Then he gets to the rear, where's there's seriously 1/4 inch of caked on dirt, and goes "holy $hit! We're gonna have to charge you extra for all that..." Right then the wheel grabber started pulling my car in and he just knocked it off shaking his head, LOL.
Car looks back to normal now