Read the article though. All that really happened was a delay in reboot. The headline is nothing like what actually happened, which was consumer mishap, essentially.
It needed to be rebooted because he washed it 'wrong'. and its a known issue that after the car gets too wet reboots can take hours upon hours like this.
The advisor said that "it is a known issue in the Cybertruck that when you do a screen reset, instead of resetting in the standard two minutes, it takes five hours."