Check the bottle and see what it has in it. If its just soap than it might be ok.
If it is the premixed kind, they are so dilute that you might get away with it no matter what it has.
If you are like me and run straight Windex, then not so good.
Other than a foaming problem, the worst thing is that a lot of them had Ammonia in them and that might be hard on copper and brass.
But your antifreeze has a lot of anticorrisive properties, and would protect things somewhat.
One thing that is VERY important is to never ever put antifreeze in the washer bottle.
That could get you killed.
Years ago, Ford had a combination radiator overflow/windshield washer bottle with a divider down the middle.
The two fill holes were side by side.
Maybe useful in cold country because the coolant expansion would help warm the wash and help keep it from freezing on the windshield.
Anyway, somehow some idiot, not me, filled the washer with antifreeze in my service truck.
Driving along in traffic at speed, a light mist of rain hit the windshield.
I hit the wipers, they smeared. I hit the wash, which sprayed the fluid and turned on the wipers.
INSTANT blindness!!
The antifreeze coated the windshield and smeared beyond belief. It was like trying to see through that distortion glass they put in bathroom windows so no one can see in.
Of course, I kept hitting the button, which made it worse. Finally I stuck my head out the window and eased over to the shoulder.
Took every paper towel I had and my shirt to get it clear enough to drive again.
J.
It took me two hours to get all the soap flushed out of that thing, but it was clean!! 
