Could anyone with more knowledge confirm, but couldn't they just do what some car companies are doing and have a system by which you can just disable keyless entry when it's parked up at night?
If I'm at home and my car is parked up where the key could potentially be repeated then I just disable it by locking the car using the key and tapping on the door handle, which disables just tapping the door handle to unlock it again, and only the unlock button on the key works. As far as I understand it resolves this issue, unless I'm missing something?
Not tried in a while but it used to just be a case of leaving it disconnected from the net during setup.
Failing that you can still sign up with a throwaway account and convert it to local in the options after installation iirc. It's not ideal but it's still something at least.