ID Card 53: It is located in an office in the back of the Supermarket stockroom. After going upstairs, keep advancing and go past the door to the Supermarket main room (The one with the Coffee sign). You will find the office, the Id Card is on the desk.
ID Card 54: It's on the information desk in the Supermarket main room.
ID Card 55: It's on a desk in a room after encountering the first punks in the Police Station. You will see a big police logo on the ground before entering the room.