Just looked it up. FL must’ve changed the law.
“There are fourteen states — Arizona, California, Colorado, Connecticut, Delaware, Hawaii, Indiana, Kentucky, Massachusetts, Michigan, Minnesota, New York, Texas, and Vermont – in which customers can buy alcohol at Costco without being a member.”
We can buy liquor, wine, and beer at both Costco and Sam’s here in Indiana, but I’m pretty sure you have to be a member to do so. Both of them check my card every time I go in.