Here, in the United States, most labour relations are determined by the laws and regulations of each individual state. For your own sake, I would contact your state representative. He/she may be able to sent you a set of extracts on the labour laws of Florida.. From the publication, you could then determine whether an attorney should become involved.
Here in Massachusetts the law only allows the employer say in one off duty behaviour -- the consumption of tobacco products. A certain big box retail operation is regular target practice for our state's attorney general over attempts to do otherwise.
Be well