In real life freight trains have the right of way in the U.S. In other words, the Dollywood Express would be a lot less fun if it spent half the day waiting while trolls unload corndogs from two-person handcars randomly distributed along the track.
Back in the day, America's RR's ran their own passenger services (no Amtrak), on their own track, and generally gave right-of-way to the passengers. They got out of that business because it was losing ridership and money.
The scam was in from the beginning. The car helped exacerbate the problem and the train companies made big fusses about all the lost ridership to the car, as things went along, but even at the beginning a lot of the US rail companies were built on the knowledge that cargo was lucrative and passenger travel the necessary trojan horse to pickup land for cheap.