First, a correction. The five chicken rule in St.Pete is a myth. I was told that by the pet store clerks I got my first three chics from, and that is actually the rule for Tampa. You can have as many as you want in St.Pete, but no roosters, and the coop must be 100 feet from other homes unless you get signed permission from the ocupants.
HOWEVER - chickens (and this probably applies to ducks, too) are apparently still not allowed in unincoorporated Pinellas, unless they finally got around to voting on the issue. About a month ago someone else on here wrote that the council had postponed the vote, and they were very disapointed.
I am having a chicken swap on Novemeber 6th, with part of the idea being to invite some of the lawmakers to come and see how quite and non-smelly they are. I have PM'd the original person interested in this to see if they could help get the word out, as they know the names of who to contact. Let me know if you are intersted, too, and visit my thread about the swap - link is in my signature line. Hope you can make it!