Second that, I can hardly believe this story is for real. When I grew up my parents left me (and my brother and sister) alone in the car all the time. Never for more than a few minutes obviously, but otherwise it was perfectly normal. They also let us cycle to school, play outside without being monitored all the time, roam around the woods, whatever. It was the same with all my friends. Surprisingly, everyone turned out just fine, and I've never heard of a single (near) fatal incident caused by this kind of negligence around me. I think I vaguely remember a baby died in a car in The Netherlands a few years ago though. You have to wonder what kind of parenting leads to forgetting you left your baby in the car though, and how long it would take for some other serious incident to occur if you're so absent minded.

That said, anyone has a right to disagree whether leaving your kid in the car when you have to stop at the store is acceptable, but prosecuting a parent for it is downright insane.