Grocery stores and restaurants were noticeably less busy, which in some cases may be just as well, because some employees stopped showing up. In certain neighborhoods the streets are uncommonly quiet, like the aftermath of some sort of rapture.

Drawn by work in the numerous poultry processing plants, Hispanic immigrants have been coming to Albertville for years, long enough ago that some of the older ones gained amnesty under the immigration law of 1986. But the influx picked up over the last decade, and the signs on Main Street are now mostly bilingual, when they include English at all.

What the new immigration law means on a large scale will become clearest in a place like Albertville, whether it will deliver jobs to citizens and protect taxpayers as promised or whether it will spell economic disaster as opponents fear.

Critics of the law, particularly farmers, contractors and home builders, say the measure has already been devastating, leaving rotting crops in fields and critical shortages of labor. They say that even fully documented Hispanic workers are leaving, an assessment that seems to be borne out in interviews here. The legal status of family members is often mixed — children are often American-born citizens — but the decision whether to stay rests on the weakest link.

Backers of the law acknowledge that it might be disruptive in the short term, but say it will prove effective over time.