You're right. He wouldn't. He would have sent one of the Twelve to deal with it.

{ And they're authorized to deal with things like this however they see fit. Empress or not, they would not be able to ignore somebody threatening the peace like that. }

Fine. Teach him his lesson, then. That's your prerogative as Guardian. I just hope for his sake the lesson sticks, because the next person he tries to pick a fight with may not be so understanding.