Really needs to back this up with some corroborating evidence like Google maps location timeline or something. I don’t trust Tesla, but I also know when I switched to EV I started making excuses to drive everywhere. Practically free miles and great acceleration made driving a joy again. Also my wife and I would often swap vehicles if she had some errand across town to save on gas. Combined that out way more miles in my EV than I had been putting on the previous gas car.
If all this guy did is commute, then he likely has a case, but I really question that.
And not at all in the middle of the Sonoran desert, in and around a city of 5 million people, where water is a limited resource.
Phoenix has plenty of water to suit the population if it’s used wisely. Alfalfa is not a wise use of water.