Here is a screen capture I took yesterday, but it is still showing up today.
The member asked if there is something that can be done. One member replied that you can notify Google about this at this feedback form.
However, senior member, pageoneresults, response might be the most accurate:
Heh! Good luck. Google makes some good money from those ads and there are quite a few of them. That may end up being a full time position for ya, the reporting that is. ;)
Forum discussion at WebmasterWorld.