I'm just curious, and I'm interested if there are any blog posts, academic papers, etc explaining what would happen here.
The issues are the Monday before that, when one or two jobs are still necessary, when money hasn't yet entirely inflated into worthlessness, and the Monday after that, when people realize they have nothing to live for if they can't be of service to their community or loved ones, have no dreams to chase, and their only means for expression that hasn't been automated away is the destruction of their despair's origin: the systems that keep them alive begging nothing in return.
Check out the short story "The Machine Stops" by E.M. Forster
It is scale between cost of production and what everyone can pay for that service.
The producer of services no longer need money (automated) to create, hence the overall cost for everything can be zero. The only cost is RnD for future automations and I assume society as whole can collect that.