There's the other problem....
In Victoria (don't know about other states) it's illegal to leave any child unattended in a car, even to for a few seconds (ie; to post a letter in a roadside mailbox, or pay for fuel!), thanks to too many neglectful parents leaving them in cars for hours while they shop, play pokies, go to the pub, etc.
...and Miss5's kinder is right next to the local Police Station.