I thought this whole project was just one massive safety violation? Even just one person getting a heart attack in there and you've got a problem, because emergency services literally cannot get in there, when there's other cars in the tunnel. A single fire and that tunnel is filled with smoke.
We didn't start building tunnels in a decent size and with energency exits, because we were all dumbasses. It didn't take the 'genius' of an Elon Musk to recognize that we could just hack a tiny hole into the wall. The guy is just able to build a death trap, because apparently laws are optional and human lives expendable, if you've just got the money.