How do I get paint mist overspray off my windshield?

Dana67Dart said
There is glass polish compound available on eBay / Amazon.

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it will polish out fine scratches in glass.

I had some deep goudges in my rear tailgate glass. (Long story)

I used the polish and while you can still see the scratches they are about 25% of what they were.

Used a ton of that stuff on the job with a graphic arts camera business. Polishing plate glass was an almost daily chore.
It definitely works.
Edit: 1.7 Oz. HAH! We bought it by the gallon jug.....