That poor baby. He needs to be rescued immediatley. If the driver that came out refused to get involved call and ask to talk to the HEAD person. It is against the law and this person should be stopped. Just keep going higher till you reach the right person who wants to help. I hope that this beautiful dog can be saved. There must be more than one agency who could help. I even suggest calling the main AC and tell them what is going on in your area. I am glad that Tasha got out and that you tried to save him too. Thank you. Your efforts are to be rewarded.
Good luck. I will makes some calls down here (to LA) and see if they can refer or give options.