I can see this turning into a nightmare for wal-mart.
People will begin putting different color tape on their red ribbons to signify their preference in a partner.
Purple - Gay White - straight B&W stripe - Jungle Fever Orange - Sex Now Brown - Pleasures that are not spoken of Green - Chubby chasers Yellow - sugar daddy Black - Married but looking
Maybe the oldest profession in history reared its ugly head?
I would think this would be a prime breeding ground for prostitution. Maybe a gal would fill up her cart and find a guy who would be willing to purchase her groceries for some nookie in the car?
There was just way to many things to go wrong with this idea and too many ways to abuse it.