Dear Perfectstorm:
Because of the fact that would be the most blatant form of prostitution, it would get the most coverage from the mainstream media. It is a quality of life crime and hardworking people that have the collective ear of their local politician will be intolerant of such activities in their neighborhoods. However, because these big cities don't have some one like the gentleman who produces John TV, they are coerced to coalesce with law enforcement on a sporadic basis because in the grand scale of crime that happens to be one that is the lowest on the totem pole.
Henceforth due to the loitering and soliciting that these otherwise disenfranchised women are subject to perform, they often are the eyesore of their community along with other low level crimes and narcotics activity that has long been a constant in minority communities like the one in Brooklyn that was alluded to in the piece.  This will always be an issue in big cities with high unemployment rates and even more so in places where a lot of residence receive public assistance and who happen to engage in high drug use.  
With respect to women that would perform in our demimonde, the tactics are a bit more resourceful and crafty because 9 times out of 10 I would say that our women would certainly be a bit more well educated and usually go about conducting there business more discreetly and professionally. They are also more sensitive and attune to what new techniques and laws that are on the books and make adjustments just like male criminals when law enforcement gets wind of a trend of how they do certain things.  Henceforth nothing will change,in the urban centers with respect to street level prostitution except now the girls will ride in cabs instead of being on the street and pimps from time to time will move to preserve their assets and their revenue.