Oh no, a disruption? That is absolutely grounds for arrest.
She laughed. Big fucking deal. She could have said "suck a cock you suit wearing cunts." for all I care. That is not grounds for arrest- this isn't 1927. Besides, the hearing was probably hilarious.
Don't get me started on the reporter. A disturbance by yelling questions lol. What the fuck do you think reporters do? Politely whisper questions?