(a) Not later than the 20th day after the date on which the commission sends the preliminary report under Section 2033.053, the person charged may:
(1) make a written request for a hearing; or
(2) remit the amount of the administrative penalty to the commission.
(b) Failure to request a hearing or to remit the amount of the administrative penalty in the period provided under this section results in a waiver of a right to a hearing under this subtitle.