“Instead, contact local law enforcement for instruction on disposing it safely and responsibly.”
Umm...no. I avoid contact with LEO’s as much as possible. There are plenty of places to safely dispose of bad/wet ammo that doesn’t involve the cops.
As you said, there are safe ways to handle the issue without making it an LE issue. And I doubt most police departments, at least small/rural ones, feel like taking in and disposing of ammo from people too stupid to handle it themselves. I'm sure they love it when people hand in guns because it gives them an unrivaled opportunity to take their pick and expand their own collections. But wet ammo? Probably not.