hello! OK, so this seems like a bad idea, but then again, maybe not... If I were sleeping in the car in cold weather and had an electric blanket plugged in, and left the car in "ready", would it heat the blanket and kick on the engine like a generator when the battery got low? maybe the engine would be running too much. would setting the auto/air to something like 67F work? is there danger or horrid wastefullness going on if the car is "ready" for long periods of time and not moving?