You Can Just Hear The Ominous Musical Sting As That Sign Is Shown, Can't You?

 It's the Day's Day of Days! Because Undercover.

I have to admit, that sign did get a laugh out of me. But it''s a laugh AT Muir, not with him. Because, let's be honest, this is Muir at his most pathetic, the cringing whine of a man who hates having his bigotry and evil called bigotry and evil, trying to wrap itself up so that it comes out like a smug dismissal and failing. 

Also, we learn that not-Austin is actually named 'Teeter', it's not some sort of nickname. Because of course it isn't, Muir is shit at naming things.