Decent article describing what happened in GA when we passed a good immigration bill back in 2012. We very quickly stopped enforcing it on farms. Everything is back to “normal” now:
http://www.forbes.com/sites/realspin/2012/05/17/the-law-of-unintended-consequences-georgias-immigration-law-backfires/
(I meant to say, I believe, 2011.)