In the future I would highly recommend overnight Amtrak service. At most someone may ask for an ID. And I find it to be a much more pleasant overall experience.
I obviously am not a fan of TSA, but what is "unbiased" in this context? TSA tells us it's some sort of security analysis device, which is obviously biased because they've gone and bought thousands so I can't trust them to report accurately on it. It's also not as they say it is - independent security auditors have regularly defeated the device.
Hence I posit that the device is a genital analysis device, as that is another purpose it serves.
Every time I've looked at Amtrak as an option, it was more expensive, and took several days to get to my destination.