I've received an unknown gun false a few times when driving across the MacArthur Causeway from downtown Miami to South Beach. It happens right about at the same spot (on this map, between the westernmost Hwy 41 marker and the little "A" pinpoint) where there are occasionally LEOs or constant K-band speed display doodads, but every time I've received this strange false, I'm positive there is no LEO using laser nearby, nor have there been any Infinitis, nor does my V1 (mounted high) pick it up.
It's right next to the Port of Miami (labeled Dodge Island in the above linked map) so I have to guess that it's possibly something to do with the port that sets it off. It doesn't happen every time though.
Any other Miami LI users experience this? Any ideas what could be causing it?