Something similar happened with IEEE[1] - It had accepted approx 120 papers generated by SCIgen[2].
[1] - http://www.nature.com/news/publishers-withdraw-more-than-120...
[2] - http://pdos.csail.mit.edu/scigen/
It doesn't take a "week off" to notice that a paper is gibberish, at the very least.
It wouldn't surprise me at all if most of the general public would be unable to distinguish a SciGen-generated paper from a real one.