VW, presumably, has armies of software engineers/other technical people (That you might find on HN, etc) so I don't think it's unreasonable to assume someone will stumble across it.

It's also worth saying that even if they don't have a automated system to look for x-infringement, they have many employees who when bored could end up searching for (say) Volkswagen on github.

Whether they care or not is another matter...