According to this siren map (link: https://www.google.com/maps/d/viewer?mi ... 81759&z=11)
There is apparently a siren that was removed from a building in Downtown Fort Lauderdale.
There is a picture too:
(link: http://www.jmarcoz.com/sirens/ftlauderdale_fl.jpg)
You think you could add it to the map as removed?
As a side note, there is also a ton of removed thunderbolts in the Tampa Metro Area.