That's the upshot--I agree.

As one who lives literally on one of those streets (Masonic--admittedly some of the others are dicier), and who believes that "smash and grab" is about as low on the list of quality of life crimes in my neighborhood (or most anywhere on my street) as anything I can think of, the original post strikes me as nearly useless in terms of handicapping travel/parking risk. That said, I don't mind if the effect is having more of SF's finest in MY neighborhood, for the sort of things that really might call for their services...