Hey Ralph, Wouldn't the gorilla's act be a non-player foul and thus administered separately from the illegal formation?
I would have enforced it that way with Bangor a net of 10 yard gain. I agreed with the whitehat that you couldn't get creative with the 9-10-1 enforcement where the offense had also fouled.
A further update on the play : It was reported in the Bangor Daily Snooze/News that a D-back leveled the gorilla after SHE interfered with the pass. The gorilla's head popped off after the hit and reveled that it was a high school girl.

The constables still did their duty

. I believe detention will be added to her class schedule

. There was a player in an early Super Bowl that leveled a fan that came on the field and was later quoted : "When they come out on the field ,they play by our rules!" The fan was a guy.
SOX WIN...PATS WIN...LIFE IS GOOD