Vicky talks in the opening voiceover about a seagull going for a bit of food in the water and getting itself drowned. Oh, yeah? It's dramatic, but seagulls are more skillful than that. Later on, we see a gull on a piling - or was it a tern? Maybe it was all symbolic - the gull is said to die, but is actually still alive. It seems utterly unlikely, but it would have been in keeping with the rest of the episode, whose main thrust was to reinforce the status quo: Sam and Joe are pretending to the world that Maggie is dead.
There was a little bit of forward motion for Carolyn, who just isn't getting the desired results with her announced engagement to Buzz, and seems to be lookng for a better plan. I can't help thinking that she isn't worth Liz's anguish, but that's mother love for you: unfailing in even the worst of circumstances. It would be fun to see Liz and Mrs. Johnson sit down for a nice heart-to-heart chat about the trials and tribulations of motherhood, but I believe Harry had not yet been invented at this point.
If I were Vicky, I'd be tempted to ask Sam if I could arrange a small memorial service for Maggie. I don't know how Sam would manage to wiggle out of that one. Maybe he'd tell Vicky to talk to Joe about it, and make a quick phone call to Joe as soon as Vicky was out the door: "Now what?" If I were Vicky, I'd also have brought some sort of flowers or food to Sam - but maybe she did that at some later time.
At the end, when Sam and Joe were re-emphasizing that they must not tell anybody that Maggie is alive, I expected them to burst into a lively and heartfelt operatic duet on the subject. It seemed like the only possible conclusion to the scene, and I wouldn't be surprised if Joel Crothers had a half-decent voice. I don't think David Ford did, however, since his one little snippet of singing in 1776 was obviously dubbed. So it was probably a good thing that they didn't try the duet.