He gets locked inside for an unknown amount of time (the original commercial break occurred here), though as the postbox had a "1" showing, it was probably all night. He keeps trying to call out for attention, which goes unnoticed, and then he waves his tie out of the hole only to attract a dog who yanks on it, nearly choking him. When he is finally released (by another postman), he loses his car keys down a drain and gets a bus home.