 If you still want to get there, there's time. Metro Rail and bus trips are now free for the rest of the night. Parking at Metro lots is also free. Metro Rail will be open until midnight and operating on a Sunday schedule. It's 8.05. It's now safe to drink the tap water in the district and most of Arlington. A boil water advisory put in place last night has been lifted. And WTOP's Neil Augenstein is learning more about why it was imposed in the first place.