Good article, you should have posted it on the folder forum.
What's happening is the success of folding bikes in the UK where trains are smaller than in the U.S. with no place for even a folder. Complicate matters worse, those trains are PACKED with people so that even a very small folder like the Brompton is just too big.
Someone gave a good comment in saying they should just bike to the station and lock up. However, my experience has been positive only if you park at least 2 blocks away from the station. Parking at a bike rack is a quick way to get your bike stolen and damaged.