A few factors related to my decision to just keep going:

. The neighborhood is not the best in town. Between that and the behavior of the driver, personal safety was more of a concern at that moment.
. High likelihood that if I knocked on doors, I would not be able to effectively communicate with the residents (No hablo Espaņol).
. All the rational things that are going on here in the thread were definitely not going on in my head at the moment. I was more shocked than anything else.
. I was running late to meet a group for a ride.

That said, if I wasn't the person this happened to and someone else posted up a similar story, I'd likely be part of the "shoulda got her license plate number" lynch mob.