Hostile long-term campers on site - beware

Arrived on a Sunday. Moved to a new site Monday for a long, 3 week stay. 

On Tuesday morning, while walking my dog around the park, was verbally accosted by a long-term camper (onsite for 2 years, per management) because my dog pooped on his grass. Picked up the poop, apologized and moved on. Gentleman came back out (apparently after watching the video he had) and followed me. Move verbal abuse. 

Short-term camper drinking coffee asked me what was going on. Explained and she told the gentleman to"chill out- he picked up the poop". He verbally abused her. 

This was reported to the front office when they opened. Was supposed to be passed on to the manager. My wife, dog and I went to the office a half hour after the manager got in to discuss the situation. He hadn't been briefed by the person taking the report yet.

The manager swore that this gentleman was a loner, kept to himself and"wanted to be left alone". My question - if he"wanted to be left alone", why in the world would he follow me to continue the verbal abuse? And why in the world would he verbally abuse someone not involved in the issue? 

We decided to leave. Worried about the safety for my wife, dog and self. Management would not return our money - park policy. They care more about the money than the safety and security of their clients.