Dear Midnight, Husker is 4 years old neutered male who urinates on the carpet in the same place all the time. I had moved the furniture around to cover it and the problem stopped for awhile. Dear Jo, First you should investigate and see if there is some reason that Husker is rejecting his box. Sometimes if you move the box to another location, or change the type of litter, or even change the type of box it will help.
Cats are very sensitive to changes in their environment.
I am just curious, as what is done is done. As long as he can smell it and get to it, he will probably go there. Another thing that might help is to have more than one box in the house. I would put one on top of the spot where he goes. Finally, yes if he is misbehaving you need to confine him again.