Ya, but I don't think it would've been that long.
Maybe they waited until the shouting was over before they stepped onto the mat.
BTW, I don't think that LaKisha was making fun of Luke either -- or at least she wasn't making fun of him for being deaf. It may have been partly nerves, but also partly a way to get under his skin since she didn't like him much. Unfortunately, Margie was in such a state that it set her off.