Fla. Stat. § 347.04

The board of county commissioners, when they shall grant any license to keep a ferry or toll bridge, shall order and direct the rates of ferriage or toll which the person licensed may charge, and may, from time to time thereafter during the continuance of such license, alter such rates, and they may also direct what and how many hours each day such person shall attend her or his ferry or bridge, which hours shall be at least from daylight till dark, and may direct how long persons desiring to be crossed may be detained.