I know if you pour straight coke from the bottle or can on your windshield it will remove the road film from the glass. I bet it would do the same with wax. It would be a cheap fix if it worked. Even if it didn't help the wax, the film will be gone and that will help the view.
Drive safely !
This might sound crazy, but i've had good results using ultra-fine steel wool. Glass is actually harder than metal.
The grade you need is called "0000". Try it first near an edge. You'll actually feel the effort needed lessen as the goop comes off.
We get road film on our windsheild which makes it hard to see through when it is raining so whenever we go on a trip or I know we will be driving in the rain, I scrub the windshield good with Greased Lightning. You can find it in the grocery store with the cleaning products. Spray it on the windshield and scrub hard with a damp rag. Then take the rag and rinse the windsheid with clear water. Then use windex or whatever you clean your windshield with and paper towels and clean as usual. You will find that when it's raining, your windsheld will be crystal clear making driving much safer.
Use nail polish remover which is acetone. Than clean with invisible glass cleaner