Well, get the girls all back together around the car, and...
Sorry, I don't know how much selective focus fixing you can do in PS and not have it apparent. And not having seen the image, I don't know how much is required.
Sharpening selective areas may make it seem like it's in focus... but we all know better. There's some software called FocusFixer that supposedly has better algorithms than PS, but I don't think it's cheap.They have a trial version but it may not be fully functional, i.e., you may not be able to save your fixes. Take a look at
Fixer Labs web page
In any event, there's a learning experience here. Let us know how it turns out. And good luck!