I have to drive an hour to get to a big box store. That's how far out in the sticks I live. So I often resemble the individual that insulted you. Only I wear overalls and smell of Eau de Cochon. (Nothing says "stay the hell away from me" like the smell of pig manure!) Having endured the derisive looks of flatlanders myself, I can only wonder if this person was lashing out at a perceived air of superiority coming from you as you gave him and his wife the once over with upturned nose. Personally, I would never insult person that was looking me over like that. I usually give them a complement like, "Yew shore gotta purdy mouf."