Safe enough after game do you think?
Yeah, I'd say take 1st street all the way - past Capitol South Metro - past Library of Congress, Supreme Court, through the Capitol grounds. Can't get much safer than that. Me, I walk to/from Eastern Market (I have a space there). Roughly the same length. I don't feel 100% safe on that path late at night, but I think I would feel 100% safe on the path to Union Station.
By the way I'm not packing. You don't want to get me started on guns.