I think at the beginning of your question you mentioned that, if the train had left the track or if the train had been breached and exposed to the environment, it would have constituted an emergency. Yes, at that point, emergency protocols would have been enacted based on the passengers no longer being safe in terms of light, heat and sanitation.
Emergency services had been contacted and did attend the train in the morning. I can't speak to what the emergency services' timeline response would have been in a greater level of emergency, i.e., the train derailed or the passengers no longer had light and heat.