In the event that the person who requested a formal hearing pursuant to this chapter fails to appear at the time and place of the scheduled hearing, no hearing shall be held. The case shall be remanded to the department, and the previous department order requiring security shall be affirmed: Provided, That the presiding officer may consider evidence as to whether the amount of security to be deposited is sufficient to satisfy any judgment or judgments as may be recovered against the person, and may adjust the amount of security required accordingly.