Just got car oil sprayed.
There is overspray all over the windows and hood.
Most of the car is affected, the hood and windsheild were the worst.
Did ONR on whole car and only got some.
What would be next best step?
I would suggest actually IPA or Eraser, or really any panel prep sprays you have. Or if you have a window cleansing polish of some kind like M37 Glass Restoring Polish. Any of those should work, I'm assuming you mean rust-proofing oil spray and I know that I've gotten that off with Eraser before on my friends car.