I'm not sure I can see them checking the system to ensure it hasn't been tampered with. Or even if they do, surely there'll be systems like chip tunes that have a handset where you can revert to stock.
A very interesting post on CarAdvice What do you think? https://www.caradvice.com.au/744080/mandatory-speed-limiters-fitted-to-new-cars-will-be-the-best-thing-that-happens-to-car-enthusiasts/
How certain are you that it wasn't lying around before the strip down? It might not be for your car. It's quite a substantial piece, I'd expect you to have some kind of adverse experience from trying to drive.