I don't get her out at night, at all. Once she is in there, she is in till morning... I do have a pee pad in there, and recently it has been dry. Also, when I leave her in the car she is in her little travel bag and the car is locked. I definitely don't keep the keys in there or anything.
But it's the same as most of you... She can be sound asleep on the couch and if I get up to get a glass of water, she wakes up and starts crying lol. Forget going to the bathroom alone or anything like that.