Before they left the Baxter Building, Franklin had telepathicly cloaked himself and Dorthy from the view of other people.  And when they got outside, he carried them both away on a telekinetic journey to Xavier's.  The two of them landed outside the gate and Franklin dispatched with the cloaking.  He needed a short rest from the trip, but was otherwise fine.  And he announced to the mansion that they had visitors via an enjoyable device on their gate.

"I wonder who is going to greet us today."