When the robbery starts, the gang hides and takes away the Wheel of Fortune material. In the next shot, there is a garbage can where the wheel was that was obviously not there before.
When TC and Dibble are hiding in the garbage cans, Dibble gives TC a confession to sign, stating the truth that the "ideas" TC had earlier where actually those of Dibble. Dibble obviously could not have been carrying the confession with him anywhere.
At the end, TC is still wearing the insignia given to him by the Sergeant. This is after he signed the confession. He should have had it taken away by the Sergeant.