I learned many years ago not to use poison when I had mice in the apartment where I lived at the time.
The poison works but the mice crawl into some human inaccessible space and die, then you live with the smell.
Set traps, they work too.
I see your point, but in the projects don't quite know how one would distinguish the smell from backed up sewers, rotting trash, etc.
This leaves the problem of what to do with the still squirming mouse/rat. I suggest Priority Mail Flat Rate boxes. The small box is the perfect size for a mouse or small rat. For only 4.90 you can ship it straight to the EPA. If it fits, it ships.