So sorry you had to experience this. It hurts.
The fact that your Dad put the Elders on the phone and actually seemed to be enjoying the moment is disturbing. He showed his true colors. I believe I would keep away from that traitor.
The sad part is that one day when he becomes a old man and the loving congregation is tired of taking care of him, they will actually have the balls to call upon you. My advise....DON'T ANSWER.
These stories just make me pine for the day this cult has to pay for what they have done to people's lives.