If one tells me to do something I believe is illegal it is my LEGAL obligation NOT to comply, regardless of their "athoriti". If you're the Chief and the mayor tells you to go door to door and shoot every person with a cat would you comply? NO.. you would not, and If you did, "I was just following orders" will not save you form the criminal and civil suits you would face. The chief seems smart enough to know "I was just following orders" could get him sued.
I know it's rare that police are held to same standards that citizenry is held to, But in this case, I had lost hope there was still a cop was not completely evil... This chief called that opinion into question.