A federal judge's injunction of President Barack Obama's attempt to expand overtime pay for 4.2 million workers has left some employers unsure of how to allot future salaries while their employees wonder how they will be paid. The regulation was scheduled to go into effect today, but U.S. District Court Judge Amos L. Mazzant III issued an injunction on Nov. 22, to the U.S. Department of Labor's dismay.