they are making you a sandwich from the ingredients they have at hand, I ail to see how your criticism of Subway is valid to be honest, they ae only doing what any sandwich shop does in that respect, apart from the ones that pre-make the sarnies and wrap them up then bung em in the chiller cabinet. In that respect a custom ordered freshly made sandwich has to be non fordist.
Now if you want to criticise subway, just point out how shit their end product is, their staff smell of some unearthly smell (really they do), the salad comes pre packed in that nitrogen atmosphere that robs it of any vitamins. Now onto their shady business practices, did you know their franchises dont have area exclusivity, you buy a franchise off them and theres nothing to stop them opening another franchise at the other end of the street (or next door even), they tend to offer you the franchise first but if you refuse they will run it themselves and run you into the ground - shady bastards