Originally Posted by
Dchiefransom
As pointed out, you can pull the cord on your automatic garage doors to keep them from opening. Disconnect the outside switch, also.
You're right except my garage door opener is 30 yrs old. The only thing I can do is pull a cord on the track to disengage the door from the opener in order to open it manually. The door reengages automatically when the opener operates.
The best I can do is pull the plug on the opener and install a padlock on the door (both of which I've done) until I get a new opener.
Sometimes hindsight sucks.