ARRIVAL: Take a ticket. Park in any free space. Go to the office with your reservation and the ticket. If there is no-one there, ring the intercom.
DEPARTURE: Use the ticket the staff gave you. Ring the intercom if in need of technical assistance.
IF YOUR BOOKING ALLOWS UNLIMITED ENTRANCE AND EXIT: Use the ticket the staff gave you. Ring the intercom if in need of technical assistance.
10-12, Rue Jean-Baptiste Pigalle