Ted-
Rule 3-1-3 gives you the authority, if you and both coaches agree, to end the game. IMHO, it would be a challange for anyone not in attendance to disagree. While football is a contact sport, when that contact moves from a game to a war, decisive action should be taken. It is often hard to get opposing coaches to agree on anything. With both in agreement to end the game, if you rejected that and continued to play, I'm unsure of your liability if further injuries occurred.
Where this doesn't apply to the original topic, Fouls By R On Free Kick, you probably should have started a new topic. It deals with a topic that many of us dread making, but should understand the ramifications.