Keep going back to them, after a few trips start bringing up the term "Lemon Clause", maybe that'll get them to smarten up. I'd definitely be reporting them to a higher level of Ford, and looking for a new car if there not gonna fix it proper. Your resale value is shot already.
Somewhere there's a DC10 struggling to get off the ground. I'm not a fan of wings on street cars, I like low key spoilers, but not something that you have to custom order from Boeing.