Zapped
Model S - PURE EV
Yup, same thing happened to me when I was pulling onto a busy street.When my windshield got splashed, I instinctively pushed down gently on the right lever (which is how my Audi does a single wipe of the windshield). What I found is that this shifts the car into neutral. Maybe I was supposed to know that, but I hadn't read it anywhere.
Just left a car wash and didn't realize what had caused it at first. Apparently newer Mercedes have the same steering column configuration as the Model S.