If the insurrectionist got hold of the nuke football, you can be certain pics of it and the sundry docs that go with it would have been on these here internets right away.
Could make a good film about a riot mob snatching the nuke football and giving it to either the Chinese or Russkies and the US knowing it's at an enemy embassy in DC and deciding how to proceed.
Or alternatively Trump, leaving office in a few hours, and knowing that Pence has been taken hostage along with his backup nuke football, Trump deactivates his nuclear football and activates Pence's. Or more dramatically, Trump simply resigns a few hours early, making Pence the President (being held hostage along with the nuke codes by Trump supporters in the Capitol).