Large shopping center with ample parking and all k...

Large shopping center with ample parking and all kinds of shops. Under the holidays they often find gift stalls . A well-stocked hypermarket, several refreshment points. Toilet not always clean, sometimes flooded and with smell of sewage.
Useful device in the parking lot that has a green LED beautiful free parking spaces and red in those occupied, so you can see from a distance where are the free seats.