Yes, take the cowl screen off and undo the clip that holds the wiper arm onto that little 3'' lever. Use your fingernail or screwdriver to pick up the rounded end of the top strip of the clip and then push it off. This gives you a little room to put a wrench in and loosen the bolt on the back of the wiper. You don't need to totally remove it, just give it a little wiggle room to clear the firewall.
Then post a picture on "what the heck is it?".
