Leave the money under the mat

It is the strangest message you can imagine. We went to Lisbourn for shopping and we parked at some payed car park. We realized at 6 that the parking is opened only until 5.30 so we run there to rescue the car... Fortunately there still was one employee but they already left this message at the window with instructions what to do if nobody is there...

So, please, lock the gate as you leave ;)