Banditbob, you are thinking like a coach! If this situation were to happen, I am sure that the White coach would be trying to come up with some way to avoid a forfeit. That is why the officials must stay on top of the rules.
You pose some interesting questions. One of them might just work. First of all, the coaches cannot agree to suspend the game for any reason. Once the officials assume jurisdiction of the game (i.e., when they arrive on the field) they make the decision regarding field conditions. The officials can suspend the game if weather conditions become hazardous to life or limb of the participants. Normally, that means lightning. If there is a sudden thunderstorm, you can bet that the officials will clear the field and wait for it to pass. Wet or sloppy conditions normally won't be a reason for a suspension.
If the power goes out, that is another matter. Obviously you can't play in the dark. This doesn't mean that the power could simply be turned off. If that happens, the State would probably hammer the school for doing so. However, if it is a legitimate power failure, that might just give White enough time to get more eligible players to the game and dressed.
Simply taking repeated delay of game penalties won't work. There are two provisions in the rules that will prevent this. First, the game is forfeited if the team fails to play within two minutes after being ordered to do so by the referee. Second, there is a rule that states that no team shall repeatedly commit any foul that halves the distance to the goal line. This means that if White did simply stay in the huddle and take delay penalties, when the ball gets inside of the ten they could not continue to take the penalties. the penalty for doing so is a forfeit. Also, by continuing to take delay penalties, White could be considered to be making a travesty of the game and could be forced to forfeit.
Another thing to remember is this -- after a bench clearing brawl the referee in all likelihood will not have a whole lot of patience with the remaining players and coaches. If a coach is going to try some scheme to prevent the forfeit, it better be good. The referee will have to make a written report to the State because of the brawl anyway, so he will include anything that the coaches do later to try to get around the rules in his report. In Alabama, the AHSAA would not be pleased with further shenanigans.