Heck, I remember when our car broke down halfway to Phoenix on I-10 when I was...well, it was over 30 years ago, and it was scary then. Casa Grande is in a weird space, with the college-town vibe...but not.
I pray he'll be safe, that he'll call home, that no one will victimize him, and that he'll be shielded from harm. God, You do so much, and You are so great- please shield him from those who would victimize him and guide those with knowledge of his situation into directing him home or directing others into placing him in the hands of his family and loved ones. Please, God, give him safety and perseverance for finding his way back to safety and loving arms. You are a great and loving God. In Jesus's name we pray; hear our voices raised together as one, Amen.