No joke, I've spent about a half hour trying to come up with an appropriate reference for who Lu Ann looks like in this in that last panel. Shelley Winters? Too much hair. Vivian Vance? Same. Loni Anderson? No. Loni Anderson never looked as old as Lu Ann does right here. Any ideas?
Anyway, she's obviously secondary in this scene as Martin and Margo bask in their newly found daughter-father love. Lu Ann, the fire escape is still a viable option if you want to get out and avoid the lobby with Mr. Six Flags, as Downpuppy delightfully dubbed him.