I think my windshield wiper switch is shot, is it?

I don't know if I did something or if my switch has now see nit's maker. I have 2013 Ford
Taurus and when the windshield wiper switch is in the off position the wiper will still swipe
in an approximate 10/15 second delay. I wiggled the switch, jiggled the turn signer, flicked
the wash button and cussed the car I even made sure the wiper switch was in the off
position.

With that being said I think the switch is dead ... what do you think? Is it something that I
could replace? If you know of a YouTube link that would show me the how to please send
it.

Thanks evey one.