You want life-altering fines and prison for inconveniencing cars? Do you think the US judicial system is at all capable of applying this fairly? That law would exist for a day before someone deemed "undesirable" is arrested for not getting across the street faster than the crosswalk signal.
Mental breakdown in the street? Jail
Cyclist riding in a way the cops don't like? Jail
Grandma can't get her wheelchair up the curb ramp? Jail
I’m saying organized, pre-meditated action designed to disrupt traffic. Laying in the street to protest, for example. Someone could be blocked while driving to a hospital etc.
People should have the courage of their convictions. This allows that.
Mental breakdown in the street? Jail Cyclist riding in a way the cops don't like? Jail Grandma can't get her wheelchair up the curb ramp? Jail