Okay, my last response because my brain is rolling too fast this morning. If you take major streets heading east from Rockville or Potomac, you should be okay. Montrose/Randolph Road will hit New Hampshire. The beltway hits New Hampshire, of course, but be prepared to bail out at your nearest exit if traffic is at a standstill or an accident.
I suggest getting a good old-fashioned street atlas and plan your backroads. I am a backroads queen, and I've never been caught. Heck, I know streets that aren't even on the map yet!
