How did he even get back into the car at the store? He said he got out of the car, locked it and then attempted to open the trunk unsuccessfully and that's when he realized he didn't have his phone or key cards with him.
Unless he locked the car on the touchscreen, but did not actually close the door when he got out of the car? Still doesn't explain how he was able to drive home without any "keys". There are a lot of missing facts here.
I drove home AFTER MY SON CAME WITH MY PHONE.
JFC, this is supposed to be a site to share experiences & get advice. Don't think I'll share any more.