It's the reason they avoided giving tickets for fare evasion on Metro. It was seen as creating an inequitable environment.

My recommendation? Just run and do your best to be aware and assume that drivers are not paying attention.

I wouldn't recommend starting a fight. Someone might be bigger or stronger than you or have a gun. It's not going to make a difference. It's like walking into an open office and telling people to shut up. It's a waste of your energy.