Someone did not do their homework. There is no Native American tribe in Colorado that practices firewalking. It is, however, done by Hindus in India and possibly new-age wannabes.
Near the end, the police officer called Code 10-36 over the radio and said it meant missing child. In reality, in both police code and CB radio code 10-36 means TIMECHECK.
At the 31 min mark, Ephram drove to Madison's house with Delia in the front seat of his car. This is illegal since passenger front airbags can kill children under 12.