You need to find the right person to complain to. Here we are sympathetic, but can't do anything.

The right person is the other riders on the train - but the hard part is to frame this such that they join you on a march to the the agency that owns that machines to complain. I wish you the best of luck figuring out how to do that (I don't know how to do it - and if I did there are might higher priority things that need to be fixed).