phone power button broken. how to i reset to send to verizon topic

Hello my phone's power button just died and my phone wont turn on. Its being replaced by verizon for free. Is there any way I can reformat it so I dont get in trouble for an open boot loader and a rooted rom? My phone wont turn on at all because the power button is not connected. So I need to do something when its powered off to reset it. Thank you