I think you missed the first point I made. Tesla will be THE biggest ride-sharing service once it gets to scale with self-driving cars. Why would you buy a car in a large city if it'll be 2.50 to get to work in a self driving, all electric car? In California there are toll roads all over the place. How are the tunnels different from a normal toll freeway? Tesla could allow use of the tunnels for a fee. This fee will be the deciding factor between whether I take uber, google, lift or tesla. I am going to take whatever offer is cheaper. I'm suprised there isn't an app out there yet that lets you compare prices for your destination through various ride hailing services, but i'm sure there will be one in the future.