Questão jurídica principal
Whether the traffic authority's withdrawal decision was void and could therefore be challenged out of time.
Decisão extraída
The withdrawal decision was not void; it was issued by the competent authority in the proper procedure, and the alleged substantive defects did not reach the threshold for nullity.
Fundamentação extraída
Nullity is reserved mainly for functional or material incompetence and serious procedural defects. No such defects were shown here; alleged legality problems are insufficient.