Middle finger in public

Years ago, in my elementary school days, I remember a boy in the back seat of our school bus flipped a following sheriff off, and the bus was immediately pulled over. IIRC, the driver talked to the cop for a few minutes, and we ended up being late for class and the driver gave the whole bus a long speech about not doing that again. I don’t think the boy got in much trouble, however. This was back in the early to mid-eighties in Georgia.