Hopefully he has GPS on his phone and can use that to help him get home.

lol how he supposed to find the GPS app?

Umm siri/google assistant?? I mean phones nowadays have features to assist people with disablities

What onthedot said. If he can ask his phone where he is located, he can have his phone give him verbal GPS directions like the kind you get when driving. I.E. "Turn right in five feet." "Turn right, now." "Go straight for thirty-six feet." Etc.