To forfeit or not to forfeit

Adult men, there is pro/rel. Top team in the lowest division is up 13-0 at the 2nd half water break. Their opponents decide to not come out for the rest of the game. They pack up and start to leave. Home coach is livid. He wants the 13 goal differential. A forfeit would be a 2-0 decision. So the center told the home team and the referees to stay on the field until the clock strikes 90. He said the league can then have two choices. The "completed game" at 13-0 or the forfeit at 2-0.

I have...

To forfeit or not to forfeit