I don't know how good your data might be. I can speak authoritatively only about NORTHERN New England where I travel in the northern halves of VT, NH, and much all of ME very regularly. In this region, I haven't seen one of these nozzles anywhere in a long time. I assumed quite incorrectly, they just didn't exist anymore.
Now bear in mind there are not a lot of cities in northern New England. Not huge ones anyhow. That's precisely why I live here. But if I did have to wrestle with those foolish nozzles I would be sporting the tool. No doubt about it.
Streets still unseen, we'll find somehow. No time is better than now.
-Steely Dan 1972