Dead ball appeal

[RKBUmp]

Posted on a baseball forum, but regarding a softball game. Rule set not specified.

Bases loaded, batter hit by pitch. Runner from 3rd advances home and steps over the plate and is headed for dugout. Defensive coach yells at catcher, "TAG HER, SHE MISSED THE PLATE!". Runner now turns to run back and touch the base and is tagged by the catcher.

Being that its on a baseball board have gotten everything from the ball has to be live to cant be appealed until the runner enters the dugout. Brings up some questions and seems it could depend on rule set.

1. When can the defense make the dead ball appeal? Must they wait until the runner physically enters the dugout? NFHS 2-3-2 says the defense must wait to appeal until the runner has completed their base running responsibilities if the ball has gone out of play. The ball has not gone out of play in this situation. ASA in the rule supplements appears to indicate it is umpire judgement as to when the runner has completed their responsibilities. If its obvious the runner was not returning to touch until the defensive coach yelled, have they completed their base running responsibilities and can the defense make the dead ball appeal?

2. NFHS allows for coaches to make appeals, ASA must be a player. Would you consider the coach yelling, "Tag her, she missed the plate!" to be a valid appeal, or just something he yelled to the catcher?