That oughta knock out a little salmonella. I think they're okay as long as you've got the space for them and they aren't crapping all over the sidewalks or public places.
The FDA(or some division) should check down in the Keys... There are chickens roaming all over the streets of KeyWest FL.- Even at the drive thru of the KFC!! If those chickens only knew what was going on inside... They would learn to fly!