I'll take the safety question, if I may.
It's an excellent point. It's classified as an appliance. Your question is if someone were to come and damage the hose in the night. The electronics are based, with safety precautions, within that. There is a sensor that notices a pressure drop. So if at any point there were a cut in the hose, for example, the electronics would sense it and shut the compressor off. An inherent property of natural gas is that it's lighter than air, so it rises and dissipates if there is a leak. Unlike gasoline, it does not sit low and collect.
All the safety features have been built in to allow for both outside and inside refueling of the vehicle.