Thank you for the response. The problem manifested on the home page. No option to select a language there. I should have opened a model and tried switching the language there. What I did to resolve was whack cookies again, shut down and restart chrome.
I was leery of opening a ticket on something so simple, but normal fixes did not work. As an aside, the only potential cause of which I can think was that the last thing I did last night was download a model from the 3D Warehouse that was made by someone who was Spanish-speaking. But this was bizarre.