[godelski]

I'm 99% confident that wouldn't fly and the definition of encryption is broad enough to cover even a "loophole" like this. I believe you'd have to demonstrate that you're actually "controlling" the phone rather than just performing communication and I'm not sure the communication with a vehicle actually is covered by the encryption cutout. My understanding is that it is so others cannot take control of the vehicle you're operating (which may leave you liable for whatever damage they cause with it, or at least makes that more ambiguous)