I will write for the car wash. Yesterday I left the car to replace the decorative parts under warranty. They had free time for washing, and at the same time they signed up for washing and drying. I came to pick it up in the evening - I look - a lot of streaks from the detergent (badly rinsed, apparently) - on the doors (under the mirrors), behind under the trunk lid (the car is dark blue - you can see well). I didn't bother much - I think I'll come home right now, take a towel and wipe it (again, I'll go out for a walk with the dog anyway). Everything turned out to be fine on the doors, but I was washing under the trunk lid - and the stains on the varnish remained - perhaps I stood in the sun for a long time. In general, if you want to do it well, do it yourself, or at another sink, or then go with the master - show it and wait for it to be redone.
We borrowed a car from Mikhail, showed him the whole car, told him everything about it. And most importantly, I found a solution to the problem. That's what it means to know your business and love your job. Respect to Mikhail!)