There is a sequence where Peter playfully bumps Egon, knocking his glasses askew. The handles on the proton packs are miscolored red and gray. Additionally, the sequence is repeated later, and the mouth movements do not match the dialogue the second time.
The Coast Guard briefly appears in Peter's office, yet he is seen behind the file cabinet.
All the previous clips including the one after they get out suggest the crew for the MS Applegon were still wearing the red ponchos, but then they appear to not be wearing them.