LOL you think three D1 major conference refs just made some sheeet up on the fly? Of course there is rule language for this and here it is:

Art. 8. Team followers (fans, bands, cheerleaders and mascots associated with either team) shall not commit an unsportsmanlike act, including, but not limited to, the following:

c. Throwing debris on the court after officials’ jurisdiction has begun;

Note 1: Before penalizing a follower(s) of a team for violating Rule 10-2.8, the officials shall have knowledge as to which team’s follower(s) committed the act.

Note 2: When the misconduct of the follower(s) for violating Rule 10-2.8 is extreme or excessive, such behavior may be penalized by the official requesting home/contest management to eject from the premises the team follower(s) involved in the misbehavior. In such a case, a technical foul shall not be assessed.