There is no "police lockdown" in L.A. Just the inability to get a manicure and the strong suggestion that you wear a mask and socially distance. We did have a few days of a curfew but that appears to have ended.
Most likely the riots or peaceful protests. Covid may have been considered. I've heard there's a lot of KKK in the police. If that's true, it could explain their suppression of any black humanitatian movement. The KKK support modern slavery and white domination.