Unless the rules has changed. No
He would have to have a ticket.
They're pretty strict about anything like that, so it's unlikely.
He needs a ticket.
I don't know but they have a wheelchair and people who will help you all the way to the gate and it is easier than your husband because it makes security easier on you. Call the day or so early and say you will need assistance from the car to gate and your flight and eta.
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