I was late for a train at my local station and the parking machine was taking ages to respond to keypresses. I could see the training pulling up to the platform and I was still stuck entering the second digit of seven. In my shameful frustration I hit the machine fairly hard. While the button presses might take a while to register, the anti-tamper alarm has really low latency and is also quite loud.
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).