My car (German brand, hated on here) was in for it’s first service the other week. I was just back from the Mega road trip, so had gone to town cleaning it the day before, so it was immaculate inside and out with everything topped up when it went in.
When I went to get it they were very polite as they said “we’ve given it a thorough clean sir, it’s looking brand new (it should, it’s only a few months old, and I’d given them it 5 hours before spotless).” And handed me a report that included “topping up washers.”
Par for the course. 95% will not query and pay up.