Her boyfriend, Jonathan Nguyen, was hiding nearby.
Photos from the Orange County Register caught the moment as an elf threw out a signal for Nguyen to appear, get on his knees and pop the question.
She said yes.
The two have been dating since 2001.
OC Santa helps man with surprise proposal
COSTA MESA, Calif. Jenny Hoang, 27, of Santa Ana took a friend's sons to see Santa at South Cost Plaza, but little did she know Santa was waiting for her.
