Leaving a child alone in a vehicle during any weather at any time should be a felony in every state.
Unfortunately this type of incident is not uncommon here in Georgia where the summer heat gets pretty high.
I do not know what the law is in Georgia. I witnessed an incident 2 years ago in a mall parking lot where someone had left their dog in a locked car and no open windows. This was in the summer.
As I was walking towards my car I heard some arguing across from where I was parked. I then noticed some broken glass on the ground and 2 men arguing. One was an older man with his wife and the other was a young guy. Turns out the older guy had broken the window to get the dog some relief.
Apparently the police had already been called and they pulled in at about the time I was there. I couldn't quite catch the conversion the cop was having with the 2 guys, but the young guy must have said something to the cop because the next I saw was this guy on the ground getting handcuffed.
Don't know the outcome of the whole thing but at least I know this guy had a very bad day or so.
There just is no cure for stupid.
Ed