In Ca, it's a ticket if a car enters a crosswalk while a pedestrian is using it, no matter if they're on the other side of the intersection or not.
As a pedestrian in CA, LOL!
Cars almost always charge me while the walk light is on so they can get around the corner a few seconds faster. The cases where they don't are a rarity. I have been struck by a car doing this while the walk light was still on (not even counting down yet). Despite the fact that this happens nearly every time I cross the street I have never, ever seen anyone being pulled over for it, even when there have been police vehicles sitting in plain view at the other junction on the intersection.
This surprises me, because the city could print money doing this. Obviously they don't care. Oh, but jaywalking in the wake of someone getting hit and garnering publicity, that you will get a ticket for.