Not commenting on Ashley, but parent spectators in general were the bane of my life when I was a regional ref in Herefordshire and used to do kids' matches on a Sunday afternoon. All sense flies out the window when their offspring are involved.
They love to have a go at the ref or at each other. I only had to threaten to abandon a match once or twice and never did it. It was the official responsibility of the home club to police spectator behaviour, so a word with the home manager usually did the trick, and a threat of a fine and ban for the club. The FA introduced a rope barrier two metres from the pitch which spectators had to stand behind. There's also a rule no spectators can stand behind either goal line, stopping them hassling goalkeepers