Military Interference
The Associated Press reports:
A secretive Air Force facility in Colorado Springs tested a radio frequency this past week that it would use to communicate with first responders in the event of a homeland security threat. But the frequency also controls an estimated 50 million garage door openers, and hundreds of residents in the area found that theirs had suddenly stopped working.
"It would have been nice not to have to get out of the car and open the door manually," said Dewey Rinehard, pointing out that the outage happened during the first cold snap of the year, with lows in the teens.
Conspiracy theory: That first-responders stuff is a cover story. They're actually testing a secret weapon that locks the enemy's cars in their garages.
It's sort of a low-key secret weapon, for less threatening enemies.