There are multiple indications that dealers take a good chunk of the costs covered under warranty.
I went for a state inspection with a car clocking 5000 miles.
Virtually new. Absolutely show room condition.
Checking the service invoice, they have changed the windsheild wipers for no reason. $ 80 dollars for the part , $20 dollars labor
As I paid nothing I did not argue. But something is absolutely wrong on this.