It's not sad...Brian is a great fellow, and on to the career he has worked toward for a decade! Best wishes to him.
FWIW, the limited stock and closing down notice was posted on his site for quite a long while now. Placing a direct order without contacting about stock seems iffy.
Agree the order mechanism should be shuttered, but that's up to Brian alone.
Hope the OP here gets his tarp. Suggest anyone else contacting before ordering though...at least until he re-opens, hopefully someday.