I know quite a few PSA guys who live in driving distance (or at least what I consider) from DCA...such as Philly, Harrisburg, Richmond...all 3 hours or so.
Even Pittsburgh is only a 4 hour and change drive.
But I don't know DC traffic. I could imagine that 3 hour drive could turn into 4 or 5 pretty quickly.
On the other hand, I drive 2.75 hours to base now and sometimes just fly to Charlotte because I get tired of the drive.