Strange because around there SF fire trucks are super cautious: many human drivers ignore them and keep driving. And there are often random humans in dark cloth

Strange because around there SF fire trucks are super cautious: many human drivers ignore them and keep driving. And there are often random humans in dark clothing shuffling around in the middle of the streets. This is not an area where fire truck charge through. It would take some effort for a human driver to get hit by a fire truck.