Also, they still require an appointment for any entry into their office due to Covid as of 4/1/21. I wouldn't trust that you would be in and out quick enough, and you are connecting domestic to international, so boarding starts/ends a lot earlier for an international flight, so you may not have the time anyway. Is this a honeymoon trip? I wouldn't change her passport until after the trip so her GE could still be used using her current passport.