When the rifle restriction was lifted statewide, those of us that worked on making it happen in various locals did meet with certain local "officials" who were very much against the rifle becoming legal statewide. Of course when they were showed the Lehigh Valley Study completed by the Picatinny Arsenal, they were in denial as old myths diehard. The study proved that shotguns were no "safer" than rifles and in some instances were considered a greater hazard than rifles.
The "anti" rifle officials vowed to not let it happen in their jurisdictions, and much to their dismay were basically turned down flat from any help by the conservation wardens in enforcing proposed local ordnances.
So unless they have a constable or can get village, city or county LE to chase after the "dangerous rifle using deer hunters" they have enacted an unenforceable ordnance in their locales. This doesn't mean these "laws" are illegal, but they won't be enforced by the wardens from what I understood as the statewide law reads that rifles are legal statewide. Again YMMV