Unsurprisingly the CEA (CES organizers) have banned Gizmodo and are looking at further sanctions.
CEA's take on CES Gizmodo prank: Banned!
This results from the earlier presentation-fouling pranks, Gizmodo CES horseplay reported all over the web.
Lesson learned for presenters & trainers, prepare for the juvenile-- turn off IR ports/devices/remotes you don't need or tape them over, or make sure they provide some basic security. Require pairing for BlueTooth devices, turn off the "Discoverable" setting, and so forth. Mac users should pair their infrared remote or even disable it if not used. Wired connections are preferred.
I'm almost surprised there haven't been widely-publicized incidents with wireless mics at conferences, yet. I guess we'll all need secured ultra-wide band wireless microphones soon.