The road being frictionless is irrelevant unless it's also in a vacuum.
Chickens are not very good fliers, sure, but even this spherical chicken could probably manage a short flight to whichever side of the road it pleased.
If that is real, it is in pain. Overfed chickens typically spend the last ~month of their life in pain. I love chicken, but what we have done to get bigger yields is pretty gross.
It's looks photoshopped, but the original was probably mid fluffing themselves up. They can get pretty round after they get up and shake the dust out of themselves.