Sam shared a smirk with the other Sam at the 'redrum' comment. And he ignored the 'dork' insult. In fact, insults were the Winchester way of expressing affection.
"Getting everyone together is a good start," he said with a nod. "We know that you and Fred are here, but we can head back to the building for the chosen and ask around and see if anyone else has run into either people who aren't from around here are more doubles."
He could tell just how much the City's version of Dean wanted to get home, and he could only guess that it had more to do with his Dinah than with the lack of a good burger here, though knowing Dean it might be closer to equal than one might think.
"If there's a way, we'll find it," he reassured the City's version of Dean.
After all, the Winchesters were known for beating impossible odds and coming up with crazy plans for seemingly insurmountable situations.