In FSD, there's an annoying bug where Georgia minimum speed signs are misinterpreted as speed limit signs. It's because most states that do minimum speed signage combine it with the speed limit into a single sign, but Georgia has separate, freestanding minimum speed signs. Thankfully, recent versions of FSD don't immediately start slowing down anymore when a misinterpreted sign makes the car think that the speed limit on a highway is 40; but the sign comprehension bug has remained unresolved for years.