In my experience, the Metro system (Metrorail + Metrobus) works pretty well in getting me to where I need to go in the DC Metro Area (at least in DC and MD). In Virginia, it is a little more problematic, but it has not failed me yet in getting to places in Alexandria, Arlington, or Fairfax County (+ Fairfax City and Falls Church).
When I am more pressed for time, I take Uber, and am able to get to anywhere in the Metro Area in a reasonable amount of time.
While there are stories about weekday shutdowns in the news, and they have happened, most shutdowns and single tracking events happen on weekends or late at night, so officials should have a reasonable chance at getting to games early on public transportation throughout the DMV, at least in the near areas (DC+ MOCO, PG, Fairfax (City + County), Falls Church, Arlington, and Alexandria).
In MD, how can you work single games for schools without being a recognized association?
AFAIK, the MPSSAA recognized groups are the only ones who can work public school basketball in MD for the regular season and playoffs, otherwise, MPSSAA would not be listing registered associations. How does Donnie Grey, or whoever his successor in the MPSSAA office react if there is an unapproved association working MPSSAA games? What is his office empowered to do? The DCSAA can fine, suspend, or put members and their associations on probation, or terminate an association for improper activities.