What color is your car? Would be cool to see if the crow also drops nuts for similar colored cars at a frequency higher than chance. Or just yours. Or if that crow has other favorite cars besides yours that he/she knows are considerate enough to sub in as a nutcracker... maybe their colors throw that whole thing for a loop.
I'm thinking of planting more nut bearing plants in my yard. Possibly for myself, but mostly for wildlife. Corylus americana (American Hazelnut) is native and easy to grow, I understand.
Guess I'm not as smart as one...