He called to discuss the argument he'd had with MY, to give his side of things.
The thing about the print-outs is that if he really did generate them as a reason to get MF to the house, why did he wait until after noon to contact her? He would have wanted her there as soon as possible. Why work the stopover in Brevard into the plan? There's no reason he couldn't have driven home after his appointments and probably would have arrived home a few hours after phoning MF. It would have been an assurance that he would get home to care for CY in the event that he was unable to reach MF or she was unable to get to the house that day.