I suppose the drag marks and tire tracks could fade with time, but that would still imply a significant amount of time between our arrival and whatever left this place so desolate.

[He turned his attention to one of the husks holding a set of keys. Thankfully, he'd already secured his.]

Keys to the vehicles that we're presumably supposed to take into the unknown... There's a story here, but we may have to venture further to truly piece it together.