The Post's website has infuriatingly started asking for registration information in order to view most stories. If you're local, they want to know everything about you: address, phone number, favorite color, next of kin, current GPS coordinates, your highest score on Ms. Pac-Man, name of person who took your virginity, etc.
To avoid the gestapo, and presumably avoid having your data sold to the highest bidder: if you've provided a local ZIP code in the past, clear all browser cookies from washingtonpost.com and washpost.com. The next time you go to view a story, it will ask for your information, but minus the address/phone/whatever fields. Enter a bogus ZIP code that's not local, and whatever other bogus information you like. The website doesn't care about the addresses of out-of-town visitors. You don't even have to enter a valid e-mail address to register.
Presto! Now they can't track you down. Although they may e-mail you a hale and hearty "fuck you" if you criticize their stories.