Could not use the gray point tool because...

Although this post does not relate to solving the OP's problem, it was fun to toy with it.

c.pfaffenbichler​ nailed it. Something wrong with the Blue channel. Looking closely it seemed the color was transposed but not its tonal scale, suggesting a Lab correction for starters where tonal scale is discrete from color. The  b channel was transposed, followed by curve adjustments in all three channels. Lab is not the mode for tweaks so the mode was returned to RGB for further curve correction.

It needs more work, perhaps with a mask take down the magenta cast in the area surrounding the car clear to the horizon line since it would also help the greens, too. But for this exercise only Curves were used. Trickier than it looks. Give it a try.

Michelle, thanks for getting back to me.

I am working in the Adobe RGB colour space. The tools I was using were the Eyedropper tools in the Curves layer.