They didn’t. The third was his wife.
There is nothing to suggest that he yelled or berated them. He and his wife offered to volunteer at first but then were told that the next flight wasn’t until 4:30p on the next day. That is when he said he couldn’t because he had patients the next morning.
Dude — Chicago is four hours away from Louisville by car. When you factor in the time you spend at the airport, the manhandling by TSA, and the fifth-rate travel experience when you’re jammed into the coach section, it’s a wonder why ANYONE would take that flight.