They’ve already done a successful landing in a 50mph crosswind, on a freakin’ tossing barge in the middle of the freakin’ ocean.
https://www.reddit.com/r/spacex/comments/4dzcmf/spacex_on_twitter_onboard_view_of_landing_in_high/
This one?
https://www.youtube.com/watch?v=61dDyClHoiQ&feature=youtu.be
SpaceX CRS-8 First Stage Landing Onboard Cam + Chase Plane Side By Side Sync