If the officers were on the man's property dressed and acting like dealers or buyers, how's he supposed to know that he's not in danger? Maybe the best thing for the cops to do in such a confrontation (resident demanding they leave the property) would be to just leave the area and call for uniformed back-up?
Or are there a lot of 80-year-old dealers out there trying to protect their territory?
That was sort-of my argument. Plus they said the old guy approached them three times, so it's not like he surprised them.
I have no idea why they just didn't leave if he gave them the opportunity.