This is pretty much spot on.
I live in LA and am an avid driver, motorcyclist, and bicyclist. I'm also a huge proponent of public transport, and use it whenever I can.
That last bit is often a bummer; it's very rare that I truly can use public transport to get to where I'm going.
The nearest train station is a 15-minute walk from my apartment. That gets me onto a pretty good train system that can take me to Santa Monica and Downtown Los Angeles on one train, but not many other places. Changing trains adds time, and then they also go to a limited number of places.
Buses are a bit all over the place, and victimized by the very traffic I try to avoid by using public transport.
My current office is about 9 miles from my apartment (Mar Vista to West Hollywood). This translates into 35 minutes by car, 20–25 minutes by motorcycle, and 1 hour and 20 minutes by public transit, involving at least two different methods. It would be a great 1-hour bicycle ride if I could shower at work.
I start a new job in a few weeks, and that office will be only 4 miles from my apartment. This should translate into 12 minutes by car, 10 minutes by motorcycle, and 40 minutes by public transit. It might also be a relatively sweat-free (low-sweat?) 25-minute bicycle ride.
Most people aren't as fortunate as I am.