Now you're suggesting that after getting the dog into the back of the car he should try to get in the front seat to raise the windows? (assuming they are power) How do you suppose the police will respond to that?
He had to make a split second decision while heavily armed men, having demonstrated no respect for the law or his civil rights, are advancing. I can only imagine my adrenal response would be in full gear and all that entails, while this man is helping them with the handcuffs.
In my opinion this citizen deserves our sincere respect and condolences for his dog, and good luck to him in his criminal defense and, if all goes well for him, civil suit against the city of Hawthorne.