Austin and Co never think to ask for Jimmy's help as to how they could get back to Miami, nor tell him of how Trish at ended up messing up Austin's bookings that almost stopped him from going to New York, even though he was already expected to be there.
Even though the Old Lady on the Plane having had enough of how Dez keeps getting past urges him to remain in his seat for the rest of the plane trip, he is later after Trish's PA Announcement of the Flight being diverted into Philadelphia out of his seat telling Austin about how it would be to get from there to New York.
The Times Square Security Guard that refuses to let Austin and Co through never seems to think that Austin is being waited upon by Jimmy and Many NY Fans of his.
Jessie while flying Austin over to the stage says that she doesn't really know how to fly a helicopter, but in the first episode of Jessie (2011) she reveals how she learnt to fly one while living in Texas, and fly it over to where the Ross Kids' Parents Morgan and Christina in that episode.
The Old Lady that Dez sits next to on the Plane to New York never thinks to push her seat back to make it easier for Dez to get through.