I realize this won’t help you now, but for future rainy weather use, I know BMW Motorcycle division had a glove with a squeegee type of material on the left hand index finger so you could clean out the visor.
Don’t really want to use any cleaner wax on a sensitive area such as a visor, especially if it’s a tinted shield or has any film on it.
The cleaner in the wax refers to the polishing compound that’s mixed in with the wax, which in turn is ever so slightly abrasive.