Perry's grand reopening of Smiley's was in July 1984.
I found this -- it's Maisie's first day (as well as Peter's!) and there is some kind of criminal intrigue involving a man who apparently frequents Smiley's. Around 15 minutes in a woman who works at the museum (I guess she must be "Mary Lou" -- not sure who plays her) gives a vivid description of the greasy spoon Smiley's. And about 24 minutes in we meet Smiley's and Maisie.
And then in 1983 Alma worked there as "Nell" and lived in Happy's Motel before her murder.