Scott_Rouse
Explorer
Blue Highway Games, at Queen Anne, Seattle, Washington.
Just immediately Googling them, they seem to have gotten at least one rave review from BoardGameGeek. Strange that they weren't keen on letting me run a D&D game, unless they just didn't like the look of me.
This is a nice store and I have always heard good things about it. They have run our D&D game days events so maybe the clerk did not understand the nature of your question.