Yeah, get ahold of an AM rep and have them cover the cost of the rebalance. You would not be the first person to have to do this and AM will reimburse you. Just make sure you don't lose the receipt.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.