[merlin3008]

I agree with trying vinegar first just to put your mind at ease, but in reality at this point you've used a number of different mechanical and chemical means of cleaning and will likely require a polish anyway. You'd certainly need to replace your sealant or wax as any number of these methods will have likely removed it. Do you have a D/A polisher? If so, I've had success with Meguiar's 205 to remove small impections and to get ready for sealant/wax, etc.