wow, twice in 180 days constitutes a "habitual offender", or someone who possibly lives there??? not that I drive into DC daily, or possibly even monthly, sometimes I take the Metro, but I know it's more than twice every six months..... this type of "enforcement" is not specific to DC, way back in the day, I had to live in a "month to month" apartment rental community in Columbia while waiting to be able to move into my new home, and apparently the MD authorities would troll the parking lots there to see if the same "out of state" cars were parked there nightly....... the difference, of course, is that it was a RESIDENTIAL community, no reason to be there nightly unless you lived there, as opposed to parking on the street in a business area, right next to a nightclub and numerous restaurants, that'll draw MD-VA residents on a nightly basis.....