I hope you're right. The gunshops I visited told me it was illegal for anyone to bring ammo in from another state.
When I asked about buying ammo, they asked me if I had bought a firearm (in California) during the last five years and if not, if I had taken some class. I also had to have a California ID. I think it had to be the new "super" ID or something. I've always joked about California being the Occupied Territories, but it wasn't until this last trip that I felt the truth of it so keenly.