I like the idea, and the specific implementation of displaying a small icon near the environmental controls to enable. Easy to turn on, but won't annoy others. If I'm running into a store for a minute and my family is still in the car, I will frequently leave the door open a crack to leave the HVAC on which is ironic. Sometimes my wife remembers she can touch the 17" console to turn the air back on (even without the key) but she sometimes misses the window. With this method I can turn it on before I leave the car.