I suspect Google will render some of the fancy video of 'what their car sees' of this incident like they've used in previous marketing materials. Those fancy videos aren't rendered on the spot though! We'll probably see it soon.
I doubt this is big enough a deal to be handled in open court. But I'm sure the data could be looked at by a third party, and the visualization could be vetted as a fair representation of the sensor data picked up by the car.