Why don't you FReepmail me your address so I can come and help myself to your property. You can dial 911 and wait while I leave.
I'm not saying I agree with his advice, but just stating the obvious. Personally, I would have had my rifle trained on the armed trespasser from cover and ordered him to drop his weapon while he was still up in the tree. Failure to comply would have resulted in both Mr. Vang and his rifle dropping from the tree.