

Bird poop left a permanent stain on my car.
Okay, I know the title sounds weird but, this morning right after I washed the damn car, a bird (I assume it was a seagull) decided to take the biggest shit on my car. The thing is, my neighbourhood is full of berry trees so the poop was purple, like really purple (pic 2), so when I went to wash it off with the pressure washer it left a stain on the paint.
I could not get it off.
My car is old (26 years), the paint is destroyed by the sun so I think that helped the stain become "permanent".
Is there anything I can try to get the stain off? Painting the entire hood white again is not really an option since it's quite expensive and it's not worth it due to how old the car is.