If a defendant:
(1) Requests a hearing and fails to appear on a civil traffic charge; or
(2) Fails to either pay the voluntary assessment within the time specified on the notice or summons, or to notify the court or voluntary assessment center or applicable entity within the required time, that the defendant wishes to have a hearing on the charge,
a default judgment may be entered against the defendant. Such judgments may be vacated or enforced consistent with § 805(e) of this title.