Re: It all comes down to this...
That may have been it. (There was a very unofficial HHGG adventure, not licensed, that I first encountered on a Commodore PET in about 1980, and successfully ran on a C64 a few years later, but I don't remember much about it now.) But the Infocom version (written, like LGOP, by Steve Meretzky with much assistance from the Sainted Douglas) started very like that except I think the analgesic was in your pocket. I DID finish it, unlike Leather Goddesses (which amused me by being playable at varying degrees of sauciness referred to as TAME, SUGGESTIVE or LEWD.)
OMG. I'm a text adventure geek. I... I hadn't noticed...
get coat. wear coat. exit.