I stayed outside Milwaukee one night years ago and when I came out my car was covered much worse than that. Absolutely completely covered, I went straight to a DIY wash and sprayed it down, in my mind (and maybe really) the car was undriveable.
ONR will clean that, but I'm not sure I'd want to reach into the bucket after cleaning the hood. :lol
I just removed some minor bird bomb etching from a black Denali that parked under powerlines. Gets really bad here in the fall and early winter when the damn grackles show up.