I think he was hosed. I would certainly be upset as well since he then had to pay an additional couple hundred $$ to have tires rotated during their lifespan.Then it was a communication error-somewhere. You were far from "hosed". And of course-the chances of those people who gave you wrong information still being there are minuscule.
That's right up there with-"I had a lousy set of Goodyear Tires twenty years ago-they are all garbage".
I mean really-what a very silly grudge to hold.
"The rest of story".