I usually explore cities with a combination of a bicycle, electric skatebord and public transit system and in New York City I had no problem whatsoever and could go anywhere. I was happy to see bike lanes all around Wall Street and other famous landmarks.
This time I am going to Los Angeles, and I would like to do the same. I imagine there is strict security in some parts because of the famous residents.
Will there be any problem with me riding through Hollywood, Beverly Hills, etc?