The Air Force vs. Navy game went to overtime and due to an unsportsmanlike conduct penalty on Navy quarterback Kriss Proctor, that pushed back Navy's extra-point from a 17-yard kick to a 32-yard kick which Air Force then blocked.
Proctor obviously did not like the call and explained what happened:
"I got up and I was trying to run to our sideline," Proctor said. "Some guy got in my way and I just told him to move explicitly and he called it. It's unfortunate that the refs made a call like that, but it's football. That's the way it is. If we make that PAT, we wouldn't be talking about it."
Using expletives are one way to draw an unsportsmanlike penalty.
Due to the uproar of the situation the Mountain West, who officiated the game, released a statement on the call:
"After thorough review of the incident following the Navy touchdown in overtime, it is clear a penalty for unsportsmanlike conduct/taunting was warranted under NCAA Football Playing Rule 9-2-1-a.-1. and was properly administered by the CFO West officiating crew. This will be the only comment provided regarding this matter."
For those curious here is the rule here it is:
ARTICLE 1. There shall be no unsportsmanlike conduct or any act that interferes with orderly game administration on the part of players, substitutes, coaches, authorized attendants or any other persons subject to the rules, before the game, during the game or between periods. Infractions for these acts by players are administered as either live-ball or dead-ball fouls depending on when they occur.
a. Specifically prohibited acts and conduct include:
1. No player, substitute, coach or other person subject to the rules shall use abusive, threatening or obscene language or gestures, or engage in such acts that provoke ill will or are demeaning to an opponent, to game officials or to the image of the game:
[...]
(b) Taunting, baiting or ridiculing an opponent verbally.
The rule goes on to include other specifics, but it is section 'b' that spells out why the penalty was called.