Abstract: Information processing systems, computer readable storage mediums, and methods for communicating driver validation messages between a driver operated vehicle and a pedestrian client. One method, with a driver operated vehicle wireless device in the driver operated vehicle (DOV), includes wirelessly receiving, by the DOV wireless device, a pedestrian only message including a driver validation code, the driver validation code being anonymous to the driver of the DOV. The DOV wireless device displaying, through a window and visible outside the DOV, the driver validation code during a time interval synchronized to be cotemporaneous with displaying the driver validation code via a pedestrian client mobile device outside of the DOV. A contemporaneous display of the driver validation code on both devices visually validates the driver being authorized to meet a pedestrian client using the pedestrian client mobile device outside of the DOV.