Hi guys - Just got my '13 S5 back from her 5k service. The convertible top had stopped working (!) and they fixed that. A few other minor things. Anyway, I know tire rotation is part of the 5k. At first I didn't even think they'd rotated them (I'm still not 100% sure) but I was looking at my wheels and they now have these weird rounded marks on them, just outside the lug nut holes. I've attached a picture. They are not dirt - they are actual impressions / gouges in the metal. I know they're minor but it's really annoying. At first I was thinking it could be from the hydraulic wrench but I am having a hard time visualizing how this could be done ... any thoughts? Before this, the wheels have never been removed since I bought the car. Thanks all!