Think about it: he has money, a car business, a solar business, a space launch business, and he is looking to bore tunnels thru Los Angeles to eleviate some traffic. We have technology for cars, transportation, connectivity, and we have traffic in both San Diego and the Bay Area. He already in the Silicon Valley area a couple days a week without a house. He can sleep in his Qualcomm office. Just saying, this is whose door I would be knocking on.
I'm not sure if this was a serious or humorous post by @SFuPHQH-egn, but it's the best idea I've seen on here regarding this issue. It's a match made in heaven, when you think about it. I say go for it PJ!