Construction companies in New York are required to pay workers on public projects a predetermined hourly rate. This prevailing wage is set by local authorities, and in New York City, it is established by the Office of the City Comptroller. Failing to pay the prevailing wage can lead to criminal sanctions including jail time, which is what happened recently in a case involving the owner of a Long Island contractor.
You may not have paid attention to changes made to the basic salary threshold by the New York Department of Labor in Dec. 2016. Perhaps that was because it didn't affect you in 2017. Now that it's a new year, your employment status may have changed, and you may now be eligible for overtime even as a salaried employee.