Complicated by the need to clear immigration and custom. Wondering if there is an emergency bus gate for arrival INTL pax by C3? Probably not given the plane didn't deplane until 3 hours+ after landing. If not, should really add it for situation like this.

Will UA get written up for being on the taxiway for more than 3 hrs, or does it not apply for arriving flights?

​​​​​​Another mess of missed connections and horrible passenger experience, weather issues notwithstanding.