Yes there is a process. After 18 days, what do you think the landlord does with the property? Do you think they keep it forever?
The eviction process in some states and getting rid of the property have separate timelines. But after that holding period, you are still allowed to remove the property as you see fit.
As far as the article is concerned, the landlord would just have to wait 18 days before calling the company.
Even your own citation says “you are at liberty to dispose of it whichever way you please.” Just as I said.
There are plenty of Byzantine steps to the eviction process. But at the end of the day, someone from the sheriff’s department removes the person and ultimately you are responsible for disposing of the property. Whether that happens the same day is immaterial.