If you can peel it off, it's not "+an integral piece of the machine+". We do understand that you're being cautious with your expensive new acquisition. The glove box of my new car had a piece of tape on it too. Peel away...
Or, if you really that concerned, follow Allan's astute suggestion and carry it into an Apple Store. I'm sure they will help you, very politely, but I can't speak for what will be said after you leave. (Mind you, a friend once called animal control to ask them to remove what he though was a dead opossum on my property...they very politely told him to be patient, and sure enough, a few hours later it got up and walked away, because as you have probably surmised, it was only "playing 'possum.". I can only assume that he became a running joke at the animal control office... 😉 )