“It would be fairly easy to locate the source of the image being projected”
I’m not so sure about that.
I suspect it’s a fairly small unit the can project through a window inside an office building or even a vehicle.
If you aren’t familiar with the location and what buildings are around the CSX building you would be correct.
I’ve been to the CSX building and the surrounding area hundreds of times, I’ve lived in Jacksonville since 1981.
There is only a couple of places that someone could use to project that image.
For example, you are looking at the front of the CSX building, the building is located on the banks of the St. Johns River, which you can’t tell from the picture.
To the left of the building out of the picture is a bridge.
The building located to the right of the CSX building also along the waterfront is the Performing Arts Center, which I’ve been to many times for concerts, broadway type shows, etc..
To the right of the performing arts center and also out of the picture is the Omni Hotel which is a very likely location, because you could from a window in the hotel be at the height of the image on the CSX building and project the image.
If the image was up only for a minute or two, then yes it might be difficult to locate because it and the person doing it would be gone most likely.
But if a cop responded quickly and the image stayed up an extended length of time, it could be found fairly quickly based on knowledge of the surroundings.