For what it’s worth my train is now running and was delayed by about 2.5 hours (so they say). It seems that they made an announcement about the problem but since my car apparently doesn’t have broadcast capability we didn’t hear it. Our announcements are now being made in person.

 

My train is also the "default" train so lots of people from other trains have joined us. It isn’t too noisy. Everyone seems very happy to be moving.