More likely the dreaded “Brown Grouper” my diver friends tell me about. d;^)
They were called Square Groupers first. Brown Grouper is too easily confused with a real type of grouper. :0)
I lived in Taylor County Florida on the Gulf between Tallahassee and Tampa. Once had the distinction of being the county in the US with the most pickup trucks. Back roads on coves and inlets galore....common sight. Also lots of small planes landing at night on long stretches of lonely road, too.