When I was down there two weeks ago, I felt the exact same way, even though I've been gone for 9.5 years now (gasp!). To make matters worse, I had to walk in the middle of them from the moment I got off the Amtrak train until I got to the metro station to be able to buy my ticket - at which time they couldn't figure that one out either! I also have to admit getting annoyed with DH when we visit because he isn't that familiar with everything either. Oh well, c'est la vie.