That appears to be the laminate clear layer discoloring. Could be wrong, but it looks like it to me. It's sandwiched in-between the glass. If it is, it won't buff out. It's a tattoo. Most of the time it's accompanied by blistering and separation of the layers which is easy to spot, but in this case, it just hazed.
If the inspection station passes it, then fine. You can drive it while you fix it up. It's not in a terrible spot, but I know for me it would bug the pee out of me if I went through all that work on the car and leave that. I'd probably put a good-quality, new windshield in it right before new paint. But that's just me.
If the inspection station passes it, then fine. You can drive it while you fix it up. It's not in a terrible spot, but I know for me it would bug the pee out of me if I went through all that work on the car and leave that. I'd probably put a good-quality, new windshield in it right before new paint. But that's just me.