hi Morse,
welcome to TE forum. you know; i had that same experience in a violin store once. We didn't look like high end customers and they treated us pretty badly. We've bad mouthed that store many times, because of that incident, even in a published letter to a national magazine. A little class goes a long time in the sales dept i think.
I am sure you can find another bike shop where they will treat you with dignity and respect.
Go to the saddles section here in the TE forum, you will get an earful (or an eyeful) of lots of opinions about saddles, good luck
mimi