Way back, when I was a kid, in the 50’s turtles were a popular target of opportunity. Rarely got on the road without seeing several crushed turtles.
Things have certainly changed (for the better) in the years since. While the highways are littered with dead animals they are mostly unavoidable collisions. Few folks actually attempt to kill a creature with their vehicle.
A dead turtle is a rare sight and I have witnessed countless cars swerve to avoid them…even snapping turtles which are still pretty negatively viewed.