My wife is a nurse that is paid hourly and her managers are having her and a few other nurses go to an over the weekend conference without compensation. They are paying for the hotel room but that is it. The conference is 2 hours away and will take up the entire weekend. She already talked to her manager about getting compensation for it but their response was that they don't have the budget to pay her for it. They think they don't have to pay them because the conference is technically optional but it is strongly suggested that they go (in other words if you don't go you'll be in bad standing with them).
I believe that by law they are required to pay for her to go to a conference if it is directly related to work even if it's optional. This conference would fall into that category. My wife is afraid of causing any conflict with her managers because she wants to stay in good standing with them. Any suggestions on how to deal with this?