I don't know about FL, but here in CA laser jammes are illegal. That won't stop me from getting one someday, but it's good to know.
I rarely am able to find something in the law that explicitly states something is illegal, but I found it for laser jammers.
28150. (a) No vehicle shall be equipped with any device that is designed for, or is capable of, jamming, scrambling, neutralizing, disabling, or otherwise interfering with radar, laser, or any other electronic device used by a law enforcement agency to measure the speed of moving objects.
(b) No person shall use, buy, possess, manufacture, sell, or otherwise distribute any device that is designed for jamming, scrambling, neutralizing, disabling, or otherwise interfering with radar, laser, or any other electronic device used by a law enforcement agency to measure the speed of moving objects.
It continues on from there. You can see the whole thing at this link
http://www.dmv.ca.gov/pubs/vctop/d12/vc28150.htm
I would assume there is something similar in FL. I'll probably do it anyway. I understand how you feel. I can't stand police officers wasting my time.