When he returned with her breakfast, the woman suddenly lost consciousness, he said, her foot slipping off her SUV's brake.
Viloria, who told news crews that his brain went into "hero mode", can be seen in surveillance video first looking at the officer's vehicle as it appeared to roll forward, then spinning around while he contemplated his next move before bracing himself on both sides of the frame and leaping out of the service window with both feet off the ground in one fluid movement. Surveillance footage also shows Viloria pulling the off-duty officer from the SUV as it rolled forward.
"I ran as fast as I could, put myself in front of the auto", he said.
The woman's vehicle narrowly missed the auto in front of it and came to a stop against a nearby curb. "Totally", Viloria, 22, told WSVN.
An off-duty Miami-Dade police officer pulled up to the window with her two children in the backseat and paid for her food. Her condition has not been released.
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A statement from McDonald's to CBSMiami said: 'First and foremost, our thoughts and prayers are with the officer and her family during this hard time.
"In that moment, I thought I'd rather save that woman's life", he said. "He is an excellent employee, so it didn't surprise me that he took immediate action and jumped through a window to help save this woman". It's unclear what her medical emergency was.
'A second employee, who asked to remain unnamed, assisted with CPR.
Thanks to his quick actions, that didn't happen. All of a sudden, help was there, Viloria said.
"I thought, 'If those kids lose their mother today, that's going to be tragic, '" Viloria told the media.