For some, the dreaded parallel park — squeezing into a 19- by 9-foot parking space with traffic waiting behind you — can make you sweat bullets. But now, you'll need that skill to pass the D.C.

Parking spots are hard to come by in the District, and even harder when a less-than-able driver takes up more space than their vehicle is due. Yet for most residents, commuters and shoppers, the ...