The Non-Illegal Bus Driver

Riddle: A bus driver was going down a one-way street the wrong way, while texting his dad and paying no attention to the road. However, he did not do anything illegal. Why?

Answer: The bus driver was walking. I never specified that he was driving a bus. Source: https://riddles.com/6832

A bus driver was going down a one-way street the wrong way, while texting his dad and paying no attention to the road. However, he did not do anything illegal. Why? — The Non-Illegal Bus Driver by Kido Riddle