[RookieDude]

Hard to say not having been there and to actually know what was said between the coach and the officials.
If she continued to get up after being seat belted...you could have by rule given the second T to her and ejected her.
I probably would have worked hard to let her know what was in store for her if she did not adhere to the rules.
I wouldn't be to quick with the second T...but, if a coach won't listen and is continuing to be stubborn...ya gotta do what ya gotta do.