Before the agency takes action under § 13-2433(a) of this subtitle, it shall give the person against whom the action is contemplated the opportunity for a hearing. If a hearing is requested, the county commissioners shall: give notice and hold the hearing in accordance with Title 10, Subtitle 2 of the State Government Article; or delegate to the Office of Administrative Hearings the authority to hold the hearing. If the county commissioners hold the hearing, the county commissioners may administer oaths in connection with the hearing. If the Office of Administrative Hearings holds the hearing: the administrative law judge shall state on the record the conclusions of law and findings of fact; and subject to paragraph (2) of this subsection, the determination of the administrative law judge is a final decision for purposes of judicial review in the same manner as a final decision in a contested case under § 10-222 of the State Government Article. In an appeal of a decision of the administrative law judge: if the civil penalty is less than $5,000, judicial review of disputed issues of fact shall be confined to the record; or if the civil penalty is $5,000 or more, judicial review shall be de novo. After notice, if the person against whom the action is contemplated: fails or refuses to appear, nevertheless the county commissioners may hear and determine the matter; or does not request a hearing, the county commissioners may impose a civil penalty without a hearing.