Yes especially when and how long people are parked for, couple that with face and/or financial tracking and you can target marketing to people or locations.
Or selling data to repo people / skip tracers. In fact a few of the larger companies that already exist do that and they share data between clients' ANPR (ALPR) devices on their repo / skip tracer work vehicles. The ACLU published a document about the privacy issues around this in 2013. [0]
