Fla. Stat. § 448.03
Any person or persons, firm, joint stock company, association or corporation organized, chartered or incorporated by and under the laws of this state, either as owner or lessee, having persons in their service as employees, who shall discharge any employee or threaten to discharge any employee in their service for trading or dealing, or for not trading or dealing as a customer or patron with any particular merchant or other person or class of persons in any business calling, or shall notify any employee either by general or special notice, directly or indirectly, secretly or openly given, not to trade or deal as a customer or patron with any particular merchant or person or class of persons in any business or calling, under penalty of being discharged from the service of such person, firm, joint stock company, corporation or association shall be guilty of a misdemeanor of the first degree, punishable as provided in s. 775.082 or s. 775.083.
Fla. Stat. § 448.03