That may be, I dunno. My experience was this: In about 2001, they replaced the windshield on my old Mercedes. Fast forward to late 2016. A crack unexpectedly developed at the edge of same. I took it in to their shop to have it replaced again. They saw it was theirs, and asked me if I owned the car when it was last replaced. "Yes". It took some digging on their part, but they found the original work order - still on paper that had been moved from their old location. When they pulled the windshield, they saw that expanding rust had caused the crack, blamed their own installation, and warranteed the replacement. They sent the car to the body shop next door on their dime to have the rust removed and painted, provided a rental car while all this was going on, etc, etc.
Customer for life!
(because i'm too new and don't have access to the like button yet..... yet!)