Per the Cybertruck warranty:

"This New Vehicle Limited Warranty does not cover any vehicle damage or malfunction directly or indirectly caused by, due to, or resulting from...

... The environment or an act of God, including, but not limited to, exposure to sunlight, airborne chemicals, tree sap, animal or insect droppings, ... water, contamination, lightning and other environmental conditions"

So, if you get all bricked up in the car wash, you're now the proud owner of a $100,000 rust brick.