Even with the law there's nothing stopping someone from posting illegally captured photos anonymously. The hobbyists will be ones that feel the impact of the law and the more clandestine drone operators that they aim to prevent will continue unabated.
I'm sure that in the not so distant future when any police officer can launch a drone all of these privacy worries will go right out the window.
In the words of U.S. Supreme Court Justice Louis Brandeis, "Sunlight is said to be the best of disinfectants; electric light the most efficient policeman." The good news here is that thanks to technology, our future is definitely going to be a bright place for all of us whether we like it or not.