If it was a Siberian Chipmunk then they are doing very well over here.Last year there numbers were estimated at 1000 living in the wild having been released by a breeder.
It's meant to be good for the water if you have ph problems.It releases natural tannins gradually.I would think you would want to soak it for a while to remove the salts.
It was only said in jest?, why hasn't a mod removed the post if it's showing illegal activity? Anyone sent the guy a PM to explain all this? No thought not ....just the usual preaching.