So I ended up sending my, "I'm posting a warning," response through a yahoo email account just to make sure he got it, what with the, "you're blocked" retort.
He replied with a one word email to my yahoo mail:
This guy is definately a winner. I just spent $40 more with another merchant for the same product. And it was worth every penny!
Now I'm off to spread the word on all the car forums I belong to!