I take back what I said. It doesn't actually address my concern. All the officer has to say is that your filming was interfering with their actions, and then t

I take back what I said. It doesn't actually address my concern. All the officer has to say is that your filming was interfering with their actions, and then they'll slap that charge on you and confiscate your phone, possibly combining with resisting arrest. Also, the worse the officer's transgression is, the more likely that your phone will be "accidentally damaged". Even if the officer's claim is bullshit, the cost of defending against their bullshit is going to be infeasible for many.