Yeah it set the immediate future goal to be going to Washington. Wonder if they'll actually show the famous sites -- maybe Congress and White House all burned out. It would be expensive to do, even if it's CGI.
But if they showed all the symbols and institutions of power having been reduced to rubble, it would hit home that there's no hope, this is the world. They're not just going from one survival crisis to another, hoping to get to some better resolution. Instead, all they got is surviving and foraging for left over junk food, competing against other human survivors for limited resources.
They did a lot of work to set up Noah's old town, especially with the cut up zombies. Nobody remarked on it but they kept showing it, so they'll use it again. Probably find there's nothing to give them hope in Washington so they head back south, probably return towards VA, since Michone talked up the idea of setting up more longer-term in Noah's town.
I can see going South for the better weather. Winter in the NE could be brutal, unless they can find a good consistent heat source.
Good thing they haven't had to deal with tropical storms or hurricanes.