I have walked along the highway where he was hit. Pedestrians have to be very careful as traffic is fast and few walk there. All along the coastal highways in the Northwest it is not safe.
Everywhere I have lived, walking on any freeway/highway is illegal because of the danger you described.
This man was incredibly stupid, and paid for his stupidity with his life.
Not only that, but if he loses the ball in traffic and causes an accident...