This is covered in the rules.
Unfair Acts
ARTICLE 3. The following are unfair acts:
a. A team refuses to play within two minutes after ordered to do so by the
referee.
b. A team repeatedly commits fouls for which penalties can be enforced
only by halving the distance to its goal line.
c. An obviously unfair act not specifically covered by the rules occurs
during the game (A.R. 4-2-1-II and 9-2-3-I).
PENALTY—The referee may take any action he considers equitable,
which includes directing that the down be repeated,
including assessing a 15-yard penalty, awarding a score, or
suspending or forfeiting the game