i think this is a really interesting point (and since the word "police" has been used on this thread a lot, i am expecting Detective Beetlejuice any second)
I am well able to believe how the situation, from her pov, could escalate if she is used to the everyday and every day racism black women tell us time and time and time again is something they experience. Some of us are listening - how can we help? What can we do?
I am well able to believe that the police were called based on (even unconscious) bias on the part of the ticket inspectors.
I am well able to believe that the police (oops, 3 times?) turn up and mishandle the situation because of institutional and/or personal racism and possibly sexism. Low hanging fruit is so attractive.
As for those who fail to connect the comments about this with the observation that murders are going up (are they?) or that the police don't turn up for burglaries and so on: it is because the busies are busy being themselves. Going for the easy win.
As people have said: we don't know the whole story, but we can extrapolate based on what people tell us. I believe them. I don't trust the police, unfortunately, not to be racist/sexist.