ZD, just because something is done doesn’t mean it is correct or proper to do.
In any event, as some others have pointed out, Kiryas Yoel and New Square (or in Eretz Yisroel, Meah Shearim and a bunch of other places) would be an even better example. If a female visitor came to one of those places it would be improper for her to drive around. (Especially if she isn’t just passing through, but rather stopping and staying in town.)