Not sure as I don’t know Italian , but from google translate it sounds like possibly the parent was driving drunk and thought maybe they could get away with it by claiming it was the child getting a driving lesson.

L’uomo è stato sottoposto agli accertamenti di rito e al test alcolemico per verificare se fosse al volante dopo aver assunto alcol e si attendono gli esiti.

The man underwent routine checks and a breathalyzer test to determine whether he had been driving under the influence of alcohol. The results are pending.