Beyond the obvious, this means it is now illegal to have CCTV cameras running when an on-duty cop walks into your store to buy coffee, visits a hospital to drop off a victim, etc. I predict this will
Streisand up in their faces (the legislatures' faces, not the cops'). At some point, the police are going to requisition some video to corroborate their side of a story and the camera owner is going to be all, "Oh no, I'm sorry. I deleted that footage since it is illegal to record you guys."
That, or the public will get outraged enough at the unfairness of it all (They get to record us with their dash cams and cameras, but we don't get to record them?) and demand the legislature do something about it.
--Patrick