I agree , a good amount of cleaning for your car from them not in place of the price for the scratch but more in pennance for basically stupidity of an emploee.
Their are 2 problems ,1 is the guy who was using the wand , @ is the owner for not having a rubber end cover to protect a finish form this abuse on cars.
Personally if it was bigger i would get it painted.
But for a small scratch take it to a professinal chip place to have it filled and sanded .
It is tough to do on any mettalic but ends up better than a complete repaint.