The best thing to do when someone is trying to argue with you is to repeatedly state "Stay Away" and video record the entire event. You may need that video for the police afterwords when the aggressor starts fabricating fantasies about the event.

You know that when a utility company is going down the fantasy route, they are likely hiding some illegal activity that they are engaging in. Fabricating fictional stories to their government regulator is just one of the many illegal activities that they engage in.