In such a situation, a regular hand polish from a car shop is completely helpless, since aggressive uric acids have managed to penetrate the deep layers of the paintwork in a week in the heat, changing the structure of the varnish itself at the molecular level. To remove this defect without a trace and not rub the element down to the paint itself, the masters use local grinding with wet microabrasives, and then sequentially raise the gloss in several steps with pastes of different dispersions. If you want to return the coating to its original smoothness, remove all optical refractions of light and protect the hood from such troubles in the future, the best solution would be to order a delicate<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}-->https://autobodylab.com/services/paint-correction/, during which specialists, using professional equipment, will carefully remove the damaged microlayer without harming the factory thickness of the body. Last year I faced the same problem on the roof of my car after parking it under trees: the guys in the atelier worked magic on the car for several hours, but they brought the stain to absolute zero, the surface became mirror-like and clean again. The main thing is to never try to rub such marks with the hard side of a kitchen sponge, because you will leave deep scratches, which will be much more difficult and expensive to fix later. Show the car to experienced detailing masters, they will carefully cut off the damaged area, refresh the look of the entire element, and your iron horse will shine like new from the car dealership again, lifting your spirits every day!