John- Tip. And your post has made me think of this idea to do myself. Go online and buy yourself a couple of knock off Rolex's. Not for you, for the guy making up the bill. Get the stainless steel knock offs. A dicerning eye can tell fake gold. But stainless knock offs go a lot further. Try to get the ones with the swept hand. You know the difference. Then (and I've never done tihs but it sounds like a good idea if your getting overcharged), go ahead and flash your Presidential Gold Rolex and tell the guy that you need to get rid of that old stainless model that's in your way and you can do better on it with claiming it stolen on your home owners (or pick the B.S. story of your choice your comfortable with). The greedy dishonest service manager get's what he deserves for short changing the shop, and you get a free or next to free service !
Ok. That's a crazy idea that would probably not jive would most but it's at least fun to think about.