I've booked business class and rode in the Cafe car. Does that count? The conductor was being obnoxious. He seated some ladies in the Business Class car for free and proceeded to flirt with them.

I sat in the cafe car as I ran into a friend who worked for Amtrak who was deadheading (deadheading crew typically sit at the end tables in the Cafe car to not take up space in Coach). I asked if it was worth reporting the conductor. He said I could, and he would if he were in my place, but because they're unionized, Amtrak wouldn't do anything about it, and I'd get a canned apology at best.