Peggy Miller was the lady who came out to help. We donned our leather gloves, got a towel and a wire cutters. Walked quietly up behind him, wrapped the towel around him to hold his wings down, then I took a firm hold on those legs and she used the wire cutters to snip the fence.
His head was in a 2X4 rectangle on the fence and he was firmly locked in there, holding onto the fence when he wasn't struggling with those talons.
He had been struggling and was pretty exhausted and "shocky", but we slipped him into a box (which the rehab recommended) for transport. After about 5 minutes in the box he was starting to move around in there, so there's a really good chance he will be ok.