At the end of this all, the dealership ended up giving me 4 new Toyo winter tires on rims for "compensation" for the incompetence of this particular sales person. I'm just going to say his name - GIRESH PAWAR (avoid him).
I accepted this. I think it's a good deal.
I never really got an apology, though, for the record. Nobody ever really owned up to the mistake. Giresh just said "It may have slipped out" that he mentioned it had traction control to me. Whatever.