Lmao joke or not, she still got something out of it. Good on her.
There's nothing good about someone being rewarded for their own stupidity. People winning these type of lawsuits just encourages and engenders this type of behavior and mentality.
Of course the article never stated whether or not there was a banner or a flyer for the contest that specifically said a Toyota, or if it was only verbal and she interpreted it as "Toyota" as opposed to "toy Yoda", since obviously the two sound exactly the same. My hunch is the latter though, as generally, a female in particular likely would not immediately think a toy Yoda when they hear something that sounds like "Toyota".
Common sense tells me that if the restaurant was serious about it being a Toyota, they would be more specific in advertising what type of Toyota it was (model, year, sedan, truck, etc), as is often the case with any sort of sweepstakes that rewards a new car to the winner. Or you'd think someone would have at least asked what kind. It's difficult to fathom that there was nobody who wasn't the least bit skeptical, highly doubting that an employer would buy an employee an item that costs more than what they potentially pay the employee in a year's salary, just for winning a beer contest.
If there was nothing that specifically said it was a car, then I think this woman had no leg to stand on and was indeed rewarded for stupidity. She likely felt stupid because she genuinely thought she was getting a Toyota, and therefore, sued.