I did not read that, what I read was the wife would disagree if she were home or something to that effect. I don't think he was ever told not to cross the line. I'm sure it's after the fact by now but I would have gone immediately after the deer unarmed being the weather forecast was what it was. Hope it all worked out for you.
Now, just how close are you to the property line? 2 deer already have fallen on the adjacent land? I might want to move a little further inland if it were me and try to prevent this happening repeatedly You might wear out the husband's welcome as well if this keeps happening.