I live around NYC, and can confirm that this is 100% true.
@Rathalos, I moved away from NYC, because things like this are true.
I live in nyc. Can confirm. I've done this. It's a dumb rule. New Yorkers do this cause we can't be bothered to get in trouble for such a pretty rule. Got more important sh!t to do. So, it's a big "fück off" to the people making lives more difficult for dog owners.
Technically correct is the best kind of correct
Isn't the point to catch all their leavings. So even though this looks rediculous, forcing everyone to diaper their animal would be far worse.