I have carried a concealed weapon for 25 years, as a resident of four states. I always thought that it would be prudent to inform officers that I came in contact with that I was carrying a concealed weapon. Until 2001, that is.
That was the year that I was pulled over by an Orange County Sheriff's Deputy Sergeant for running a stop sign. He told me to step out of the car, and I handed him my license, registration, and concealed weapons permit, and told him "Just so you don't get nervous, I want to let you know that I am carrying a concealed weapon." The conversation went like this:
Deputy Sergeant: (puts hand on gun) "You move and I will kill you where you stand. You wanna try me? I bet I'm faster."
DM "I was just letting you know, so that you wouldn't be nervous."
DS "Do I look nervous to you, boy?"
DS "I can't believe that they let dumb assholes like you carry a gun."
DM "What's your problem?"
DS "You are. Please, make one move, so I can have an excuse."
The rest of the conversation was just a productive. He didn't even arrest me or write a ticket. Ever since, I no longer inform them, especially since Florida doesn't have a duty to inform. It isn't worth the risk of running into the wrong cop.