Can’t answer your specific question. However, self-deportatioin is the only real way to lessen the illegal population. This would be done by raiding and locking up employers that hire the illegals. ALL of them to actual prison terms. And sealing the border and getting serious about deporting, of course.
FIVE YEARS AGO:
Illegal immigrant families leave Arizona and its tough new law for other parts of US
June 22, 2010
The law requires police investigating another incident or crime to ask people about their immigration status if there’s a “reasonable suspicion” they’re in the country illegally. It also makes being in Arizona illegally a misdemeanor, and it prohibits seeking day-labor work along the state’s streets.
http://www.foxnews.com/us/2010/06/22/illegal-immigrant-families-leave-arizona-tough-new-law-parts/