Just thought I'd point out that the rules concerning ties and such are very ambiguous. I don't have my rule book with me, but to paraphrase, something in Rule 3 (Periods, Time Factors, Substitutions), I believe it is 3-1-4, says that a game that is suspended must be resumed and played to completion, UNLESS the coaches mutually agree to terminate the game with the existing score or unless the state association has adopted specific game-ending procedures.
Apparently the coaches agreed to terminate the game. And regulations regarding the resolution of a tied game are left up to each individual state association and are not in the NFHS rule book. However, the TSSAA's regulations on tied games are all but non-existent. They say that if a team goes to another state that allows ties and ends up with a tie, the TSSAA will recognize it as a half-game won and a half-game lost. It says that games in Tennessee that end in a tie must be resolved. But it doesn't give a ruling for games suspended because of exceptional circumstances when the coaches agree to call it off.
It's not surprising that the officials did not know this "rule" because no such rule actually exists. If the TSSAA is going to make decisions on this sort of thing, they need to make their rules on such matters abundantly clear.