Keys aren't in ignition. The door is just open. Lights are off. It beeps. I have no way of knowing if I've left my lights on (esp. during the day when the dash panel isn't noticeable).

If I turn the car on, and keep the door open, then the beeping stops. Shouldn't it stay on until the door is shut? Seems odd that it wouldn't be screaming at me if I could be driving away with the door wide open.