I think the advice of never speaking to the police is meant to say that you can only get yourself into more trouble, not less. Emergency situations like this re

I think the advice of never speaking to the police is meant to say that you can only get yourself into more trouble, not less. Emergency situations like this require you to make judgement calls. These situations seem like obvious cases to help out with your eyewitness testimony. In fact, I wouldn't be surprised if you wouldn't be breaking some lay by intentionally not helping in an emergency.