I once worked in an area that had a problem with smokers littering. They put out trash cans and ash trays and heavy fines. No success. They banned smoking within the area. The littering stopped, because it's a lot harder to hide smoking than hide littering.
Like another poster said, "this is why we can't have nice things." A few bad actors breaking ordinances that are unenforceable means the ordinances become more strict.
I'm curious how policing the no smoking is somehow easier than policing littering your cig butt. And so what, are the anti smoking police giving smokers tickets while ignoring actual littering of plastic and pollution cause hey, it's impossible? I don't see the problem as solved. But then again I'm being a bit ignorant of your specific situation.
Like another poster said, "this is why we can't have nice things." A few bad actors breaking ordinances that are unenforceable means the ordinances become more strict.