The fact of the matter is that Flock is playing two-step with the concept of "ownership" of data. They disclaim ownership as a way to leave local agencies holding the bag for liabilities, but they fight tenaciously to retain complete and unfettered access to that data.
(After organizing a community group that won Flock contract cancellations in multiple jurisdictions in Oregon, I went on to coauthor state legislation regulating ALPRs. I am very well familiar with all the dirty ball they play.)
Also, Flock's cameras collect more data than is provided to police agencies. Who owns that data, I wonder?