It's a nice idea, but I think you need someone more important than a squire to accuse the count herein order to make it stick. I doubt Arthur would consider a charge against one of the peers of the realm based entirely upon the arms recognized by a squire. Now if someone else (perhaps a knight with a grudge against the Count, perhaps from Levcomagus?) were to back up the accusation it might stick. But otherwise I think they just tell the squire to mind his place.