It was returned two days after police in the college town about 65 miles (105 kilometers) north of Denver, posted surveillance video of the suspected Grinch on social media. The person appeared to be a teen or young adult.
There's no other information about who stole the figurine, police said Friday. The fire station has a motion-sensing door camera but it was not activated when the statue was returned, police said.
The business that takes care of the Nativity scene does not want to pursue charges.