Re: 6 pm: Pre-episode party
There was nothing that was going to stop Mia from going to this party. Not only because she wanted to support Tony (and help Nat if she needed it) but there were going to be hot Quodpot players (she'd already spied some today for the phootoshoot!!) and people from Wizzywood!
So once she got there, she would have teased Tony to 'break a leg' (does that count for TV when the episode was already filmed?) and to go find Nat!