Questione giuridica chiave
Whether the public law appeal was inadmissible because the proper federal remedy was administrative appeal rather than public law recourse.
Decisione estratta
The public law recourse was inadmissible but could be treated as an administrative appeal, which was in principle the proper remedy.
Motivazione estratta
A cantonal final decision in a driving-license withdrawal case must be challenged by administrative appeal; the mislabeled filing was still admissible as that remedy because it met its requirements.