Does it matter? If she was on her bike, or with her bike on the road, she had the right-of-way.
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Arizona: Vehicles must yield the right-of-way to pedestrians within a crosswalk that are in the same half of the roadway as the vehicle or when a pedestrian is approaching closely enough from the opposite side of the roadway to constitute a danger. Pedestrians may not suddenly leave the curb and enter a crosswalk into the path of a moving vehicle that is so close the vehicle is unable to yield. Pedestrians must yield the right-of-way to vehicles when crossing outside of a marked crosswalk or an unmarked crosswalk at an intersection. Where traffic control devices are in operation, pedestrians may only cross between two adjacent intersections in a marked crosswalk.
http://www.ncsl.org/research/transportation/pedestrian-crossing-50-state-summary.aspx
And as she was on or maybe on a bicycle, what does the law say for this?