I've tried quite a few glass products, only thing that worked for me is 0000 steel wool and klasse AIO. I tried 0000 steel wool and vinegar and didn't work well.
What speed did you have the DA Orbital on when you used the AI?. Also if you have one, I would use the 4inch ccs buffing pad. It works a lot better for spot corrections such as this.
Also show us a pic of it if you can. It will help in determinig what you may need.