The hose should just pull right off if not clip the line near the nozzle. I haven't used my rear wiper for cleaning purposes since I've owned my Jeep lol. That's what gas station window cleaners are for. You just have to get the spray timing right with the rear wiper going back and forth or you're going top make a mess all over your rear window. Or your could always remove the wiper I personally like to make it look like my Jeep "accidentally" peed on them so I leave it on.

 

believe me i tried but both my bumpers were grounded and my 4 lo wasnt working. i could easily get through it now tho.

 

Install 2.5" rear blocks, yes I've heard all the blocks stories, didnt remove the rear sway bar. In all the excitement I didn't full check for clearnace before a test drive.
What is that smell of burning rubber? Happy ending, I gave the two good front tires to a friend in need, removed the rear sway, to the scrap bin, and picked up a full set of 31's.