I had a stop back in January while driving the 3mi back home from the movies. The LEO asked me if I knew how fast I was going. I answered 42 (in a 45), which is the speed I really was going. I don't speed anymore ever since I received a ticket during my cross-country trip in Texas, and I definitely don't speed while carrying. Here in Jacksonville, the LEO's can only issue a ticket if you're going 5 or more over, so at the most I might be going a little over, which pisses off my friends, lol!
Anyway, the LEO corrected me in saying I was going 65. I was just completely shocked because there was absolutely no way. I tried to explain to the officer that they may have stopped the wrong car, but he wouldn't have it. He also assured me that their equipment was calibrated earlier that day. Now I know RADAR theory, and I know all the different factors that can influence a doppler speed reading, but didn't want to make myself sound arrogant or cocky. I just restated that something must have been wrong because I don't speed. Anyway he wasn't having it, and went back to run my license.
Now I'm not sure if in FL your status as a CCW holder comes up on the readout, but the LEO came back with a 180 degree attitude shift, told me to take it more slowly from now on, and wished me a good day. I wasn't carrying, because my license was sent back by the post office while I was on vacation, but I was a current CCW holder, and I wonder if the officer saw that and decided to cut me a break. Going 20 over (even though I wasn't), doesn't usually end up in a warning.