I heard a Metro announcement that there will be closures at midnight starting on June 3. This is a long play and the post show discussion could put you in a bind it you take the Metro. Check ahead of time or use the $10 parking validation.
They plan to have post-show discussions during this play's run. I found my discussion added greatly to my overall experience. This play has a lot of non-pc stuff in it and the discussion helped lots of the folks who stayed.