You'd think after a few cops got caught abusing these systems to spy or harass victims or former partners that they would be banned from doing anything without a warrant.
If police killing people hasn't triggered reform then it's hard to believe that abuse of a location database will do it.
Although if the victim was someone rich and powerful, then that might change. Still, the cops know to pick their battles to avoid angering someone that can fight back.
Unless they are paying for it with their own personal money, then I don't see how it couldn't be considered police powers if they are using it in an investigation.