Thank you, timethief, for confirming so explicitly that if I "clicked here to contact" the staff knows about my problem. Missing out on the long weekend is pretty frustrating---I will now quit looking all over the site for help.
Sorry to violate the policy issue on ToS public forums, but I can't imagine I really ran afoul of the guidelines. What I'd been doing this morning was reorganizing the pages of my site, and adding more art. Near the end of an upload of multiple .jpgs, the Media import page said there was an HTTP problem, I think it was, and then I got the ToS notice. The Media item is now gone from the left menu. My blog is still up, but my editing privileges are denied, unfortunately while I was in the middle of some restructuring. It sure feels like a technical problem to me . . . -Sue