Amtrak rant, continued

Now I've learned that if Amtrak reschedules your train, not only do they fail to tell you about it, they also remove your reservation from their automated ticketing system. You have to go and get your tickets from an agent--after waiting on a 20+ minute line and almost missing your train. (The reason I didn't learn about this last time was that my train had already left when I arrived at Penn Station, so I bypassed the ticket machine and went straight to the line.) Grrr.