But then how are you going to prove that the contract existed at all? If I say "I'll give you a hundred dollars to jump off that bridge", and you do so, how are you going to sue me if I deny ever making such a deal? And what's to stop Average Joe coming along and saying that I made such a deal with him, even if I didn't?
To my understanding a verbal contract is legally binding in the US.
But even if it were, that still brings us back to the fact that they said something that sounded like "Toyota". If she was too dumb to realise that she obviously wasn't going to be given a brand new car, then that's her own fault.
Memo to self: Visit Hooters next time I visit the US.
Hooters is a restaurant where girls with massive tits wear tight white tops and serve horny guys.