Community Laundry room protocol

Where I live, there is one laundry room shared by approximately 20 families give or take. There are three washers and three dryers. There is a posting of laundry room rules. One of the rules states that you must, in a timely fashion remove your laundry from the washers and dryers so others can use the machines.
I have been down there and I’ve seen people leave their laundry well past the washing and drying cycles. I mean several hours, which means no one else can use the machines.
What do you think the social protocol is for this? Do I wait an hour and move their clothes for them? Or is there a no Touch rule in place in these situations?