Worst customer service? There’s a tie: First is the Amtrak agent at the Champaign, Illinois station who refused to let me check a bag because it was less than an hour to when the train was scheduled to arrive. The fact that the train was running late and wasn’t actually due in the station for three hours didn’t make any difference to him.
Also in the running is the entirety of the Denny’s we went to the night of my high school prom. The waitress was rude and slow, there was a grease fire in the kitchen, after waiting 40 minutes for our appetizers the waitress told my friend’s date that they were out of mozarella sticks, and to top it off there were a couple of drunk guys who kept playing with all the creamers in the restaurant.