According to the OC Register’s Around Disney Blog:
Patrons and employees of the ESPN Zone restaurant at Downtown Disney in Anaheim were evacuated Tuesday evening as a precaution because of what was described as a minor electrical problem, officials said, according to the City News Service.
Anaheim firefighters received a call of light smoke in an area near a ticket booth about 5:30 p.m., a dispatcher said.
No fire was found, and there was no additional smoke after someone turned off a fan, the dispatcher said.
The last unit left the restaurant about 6 p.m., the dispatcher said, and it was not known how many people evacuated the restaurant.