He was tired of waiting for his pizza after 40 minutes. 

According to the Colorado Springs Gazette, a bear snuck into a pizza place thorugh an open door, made its way to the prep room, ate the icing that is reserved for cinnamon buns and curled up for a nap on a storage rack. 

The pizza people called in wildlife officers, who will feed and rehabilitate the malnourished bear, and then release it back to the wild.

Sources: NBC News