Police say a clerk at the store in Fayetteville accidentally handed over a box of doughnuts that also contained the store's cash receipts on Friday.
Police say before taking the money to be deposited, a manager put the cash in a doughnut box as a safeguard against theft.
Fayetteville Police Sgt. Dan Grubb says the clerk didn't know about the routine, and accidentally handed the wrong box to a customer at the drive-thru window.
Grubb says as of Monday, no one has come forward to return the money.