Yikes! I must admit that's one of my biggest fears, locking Abbie in the car. I usually put my keys in my pocket, but I'm always paranoid that I will lose them so I check and recheck and re-recheck that they are still there several times as I'm loading up the stroller (must be a little bit of obsessive compulsive disorder I reckon). What a relief that you were under cover in a carpark! Glad you're both ok