My husband works for a food distributor-not retail- and is made to work some hours on Sundays with no extra pay or comp time. He works at least 40 hrs Mon thru Friday. Is this legal? He has been ordered to work this coming weekend(both Sat & Sun) -12 days in a row! He is salary. His check stub does not say"exempt" but I don't know if he is or not. Also are companies required to pay time and 1/2 for Sundays if it is not a retail business?