Comment Fixed in european version (Score 3, Informative) 424
This is fixed in the european version of the software (I am a Model S owner in Norway). But the downside is that contacting the car with the Tesla App takes a bit longer and doesn't always work (the car needs to wake up to respond). I would guess they are having trouble with keeping the car polling their server while shut down.
This is not "a real problem" in europe, as they have not released the app for europe yet (I'm using the american version to contact my car).