Post-script - 9 hours later, Japan air lines finally got around to getting a boarding ladder to the plane where we were able to get off and clear customs. - that however, is another interesting story.
Posdata - 9 horas más tarde, Japan Air Lines finalmente llegó a conseguir una escalera de embarque al avión en el que fuimos capaces de bajar y pasar la aduana - esta es otra historia interesante.