Nevadaref wroteOf course, the interp doesn't specify how to penalize this. We have to assume that unsporting acts should be penalized with an unsporting foul.
The interp specifically refers to 10-3-7b anmd 10-4-1c, so that's a pretty good assumption. 😉
It's nothing more than a case play on the POE on bench decorum a few years ago -- an example was given of a coach yelling profanities (iirc) at his own team.
And, (also iirc) we've had discussions here on whether a team could be penalized for these types of actions. The answer is clear, now -- yes. (Which doesn't mean that most of us won't try to manage the situation, first).