I haven't lived in DC for years now but, as your post demonstrates, things haven't changed much.
I've never had my car broken into as much as when I lived in DC. And I've lived all over.
I lived in a supposedly "nice" neighorhood too. And my car was just a cheap little compact. Yet, the window glass was broken three times. There wasn't even a radio or anything to steal.
People in the neighborhood used to put signs in their cars saying "No Car Radio," trying to prevent the break-ins, but it didn't do any good.
After the first year when my apartment lease was up, I was so fed up, I moved to Virginia.
You have my sympathies. I certainly understand your frustration.