From a tactical point of view you get a blowjob and call it a night.
From a strategic point of view you "next" her and move on to another woman who takes better care of herself.
Based on your scenario you are talking about a woman who apparently has personal hygiene habits well below the norm for a sane woman (ha ha

)with a healthy self-image.
I believe I've said before that one big reason for a man to look at a woman's feet, even if he doesn't have a foot fetish, is to see if she takes care of them. Well groomed feet on a woman means she's willing to get down there and do some work on her body. This bodes well for her personal hygiene between her legs, both entrance and exit (although you
always have to beware of STDs).
Plus I think it would be rare to find an attractive American woman today who would so blatantly ignore her feet. Female feet are now being pampered at a level unheard of in history: pedicures, nail polish, toe rings, ankle bracelets, sandals, etc. It's impossible to ignore anymore, and any woman who does so has a problem.
I read something in the past few months where one of the newest types of cosmetic surgery available was some sort of procedure to shorten or streamline toes. So there are women out there who are willing to undergo
surgery to improve the looks of their feet (as well as to fit into the more stylish types of shoes out there).
Bottom line: healthy female body implies healthy female mind. Doesn't always equate, but it's one clue that you can use. Once you have the outside taken care of you can focus on what she's made of: sweet, loyal, suportive and flexible or a spoiled nag who sees you as a competitor instead of a mate.
DP