Well you mentioned Florida, and well I'm from Florida, so here you go. Florida legally defines a bicycle as a vehicle. The same rights are provided to them, must obey same traffic laws as motorized vehicles. If riding on sidewalks/crosswalks they must yield to pedestrians and give audible signal before passing.
You have to operate a light between sunset and sunrise. A white light visible from 500 feet for the front. A red light visible from 600 feet on the rear.
If you are not traveling at the same speed of other traffic you must ride in designated bike lanes, or as close as practicable to the right hand curb or edge of road way. You can move away from right side to pass, turn left and avoid hazards.
This is a big one that the suncoast riders here ignore on some of the back roads. You cannot ride more then two abreast except on paths designated to bicycles. Riding two abreast you cannot impede on traffic when traveling less then normal traffic speed. I catch that group several times taking up two lanes and it gives other bikers a bad name.
You must signal intention to turn 100 feet before turn. You can use left turning lane when turning left.
You cannot listen to headphones.
And yes, you can get a DUI on a bicycle.