I used to ride Amtrak from Champaign to Chicago every week. Every once in a while, I would encounter a surly old-timer that would look at the folded bike and pretend to get upset. I should note, most of the conductors were great... but some were downright ornery. Additionally, the gate agents would sometimes be confused about folding bike policy. Even after I had been riding the same trains for months. I'm glad that things have improved over the last year. I haven't ridden the rails in about a year.