"Establish a grace period of up to 60 consecutive days during each authorized validity period for certain high-skilled nonimmigrant workers when their employment ends before the end of their authorized validity period, so they may more readily pursue new employment and an extension of their nonimmigrant status." As per the wording, it is meant for someone to pursue new employment and extension of stay. It does not say anything about someone to wrap things up before leaving. I don't know how the overstay is enforced but you would be better off checking with an attorney. If you do so, please let us know too