The wording specifically
The wording specifically states any modifications before delivery to the ultimate purchaser or for anyone to manufacture an item to defeat the system. So the ultimate purchaser can legally do anything they want to the system. Now, after they do, it may not pass the individual state inspection, but it is not illegal.
If you are selling a device or offer a service to disable the system that’s illegal.
But when a system clearly has safety issues, causes undo hardware failures, or causes mental anguish, the system should be illegal itself, and there should be a way to permanently disable it.