This particular law goes back to Prohibition era, I believe, or even before.
Here’s some of Florida’s silliness about alcohol:
https://www.alcoholproblemsandsolutions.org/florida-alcohol-laws-know-go/
Yep, been there and dealt with those laws. I loved the laws in South Carolina (don’t know if changed) but the alcohol store was marked with a bull’s eye. That was all the signage allowed.