You ever seen how cops are during a high speed chase? I seriously doubt that there were any cops there that were calm enough to be able to see that she was afraid and wanted to get out. Most cops are so hyped up and angry that you ran that your a$$ is going to get kicked whether you're guilty or not.
I don’t disagree with your point, generally speaking. They are high on adrenaline in those situations.
I have seen a few videos of the police assisting a passenger who wanted out of the vehicle.