This is beyond ridiculous at this point. He is a headcase before even signing a contract. Inflated sense of worth, "me first" attitude, and doesn't even have the numbers to back it up.
Give HIM a deadline. Enough of him and his agent dictating the negotiations. Give him until the end of the day to make a decision or pull the offer. Opening day is in 21 days, if he doesn't value Spring Training then I have questions about his desire to win and what he would bring to this clubhouse that already has a reputation for not taking the game seriously enough.
I would actually have walked away from this negotiation a long time ago but if AA wants him he needs to put his foot down already.