Rain-X works great! It reduces the need for wipers but doesn't eliminate the need for them. As long as it rains lightly, you shouldn't worry too much. If it will be a while before you get the switch, you might be able to set up a jump wire from the switch to a cheap toggle switch as a temporary fix.
Rain-X works great! I've driven home on the highway for 90 miles in the rain with no wipers or problem's.
it will bead up like you just waxed your car and run off, wouldnt suggest running in the rain with no wipers though especially at 60 mph
It'll help repel water but it's not a miracle, you still need blades. Just wondering...They didn't sell blades where you bought the rain-x? lol