the officer , after coughing into his sleeve at his wrist , like coughing onto exactly the button there , asked when id gone to the drugstore and i said i thought itd been shy of midnight , maybe even eleven or something , heard myself saying i might have a receipt around then shook my head , involuntarily , adolescent , caught , awkward , made a blah sound , said that actually id just got the cigarettes and medicine , remembered id waved off the receipt .