Prosecution For Animals Left In Cars

Today, the Humane Society rescued a dog out of a car here in St Louis that the owners left while they attended, what we think, was the zoo. The news did not say where they were but their car was parked near the zoo. Our temperature today was close to 105 degrees. They haven’t mentioned if the owner would be prosecuted or not. Should a person be prosecuted for leaving an animal in a car in this kind of heat?