Maybe I am being anal about the situation, but this is what I found in the rule book. I believe running up and down the sidelines chanting at the visiting team qualifies for the statement in bold. Trust me, if you were there, you would agree!!!
SECTION 8 OFFICIALS' ADDITIONAL DUTIES
The officials shall:
ART. 1 . . . Penalize unsporting conduct by any player, coach, substitute, team attendant or follower.
NOTE: The home management or game committee is responsible for spectator behavior, insofar as it can reasonably be expected to control the spectators. The officials may call fouls on either team if its supporters act in such a way as to interfere with the proper conduct of the game. Discretion must be used in calling such fouls, however, lest a team be unjustly penalized.
When team supporters become unruly or interfere with the orderly progress of the game, the officials shall stop the game until the host management resolves the situation and the game can proceed in an orderly manner. In the absence of a designated school representative, the home coach shall serve as the host management.