I'm going to repeat the comment I made on the Time story covering this 2 hours ago:
I hate to tell you, but it never happened. This is an AMD TV commercial (available on Youtube) saying, basically, run Nvidia and get raided for running a pot growing operation due to excessive power usage.
Oh, and a side note, in the US, the power companies DO regularly report users with sudden spikes of excessive power usage that are indicative of grow ops. This data is volunteered by the power companies, and the police do not need a warrant to collect it.