Ah, yes. Thanks for the hint, grizzled.
Now that I've taken off my pink-tinted glasses, I see I should have said "Where in the US is there a pink F-5?"
And it was only yesterday, that I was looking at two of them!
Edited to add: F5s that is, not pink ones. The ones I was looking at were in a three-tone scheme of brown, green and corrosion.