International Incident - Railway Carriage arrested

It is 3am and we have been ensconced on the Bulgaria/Turkish border for several years, buying visas (with US $) having our passports stamped and greeting an endless parade of border guards and customs officers from both nations. Finally we learn that we must leave our carriage immediately because it has been arrested along with our steward. Both are carted away and we see no more of them. We hope the carriage at least will be allowed its telephone call and has been appraised of its rights in the proper fashion.
No explanation has been given for this extraordinary turn of events, but the rumour running through our newly adopted carriage is that alcohol may have been at the root of all this trouble. However we suspect the unevenness of the tracks was probably a more likely explanation for the rolling about we had been experiencing in the preceding hours. Still, the authorities would have more experience in these matters and should be able to recognise an inebriated railway carriage when they see one.