Heading to KROWN for rustproofing, and I’ve heard they employ a method involving drilling holes. My concern is that I’ll be relocating to the USA in a couple of years. Given that KROWN is a Canadian-based company that has this drilling method and later I’ll have no choice other than choosing a different rustproofing service in the USA that doesn’t utilize this drilling method, could having the drilled holes on my car pose any issues?