Yes this story is real. In Corpus Christie, Texas, an ATM repairman was stranded inside the room behind the machine when he left his swipe card and cell phone in his truck.
At first, the man attempted to ask customers to help him, and when that didn’t work because people thought it was a prank, he used receipt paper to write a plea for help and sent it through receipt slot.
After about two hours, according to Huffington Post, someone took his note seriously and called the police…who were also a bit skeptical.
Eventually they kicked down the door and brought the man to safety.