You could, but that still wouldn't stop them to kill internet connection anyways, and even then, they can install OpenSSH Server from the App Manager which will run on root privileges and ask them to type a new password.

You can, in theory, lock them out from removing your script by locking them from using several features of the device, but that's just an overkill. After all, you'd know if they've disabled the tracking and you can fire them for that.