It's an odd dillema. Police want very badly to get your calls, if an animal is in distress.
They care, and they want to help where they can.
But there is a common sense denominator that doesn't seem to apply.
If the air conditioning is on, the dog is more comfortable than you, as you stand outside looking at him. Not all dogs in cars are struggling.
This is a time where common sense is the end game.