Why didn't my hamster run the wheel and just climbed into the cage and bit it?

So is my hamster. It hides food outside the cage. Now its mouth is full of food, and it wants to hide outside. I wouldn't let it out, so I climbed into the cage and bit it. I have found the place where it hides food, but I can't get it out. My hamster knows his family and always goes back to the cage by himself. I'm not worried, but hiding food for a long time is too slow. Besides, as a student, I can't watch it every day. It will be released at the weekend, don't worry.