If, after the warning notice pursuant to Section 14-106 of a first violation by a juvenile or minor, a parent violates Section 14-104 (in connection with a second violation by the juvenile or minor), this shall be treated as a first offense by the parent and shall be a civil violation pursuant to Subtitle 28, Division 3. For the first offense by a parent, the fine may be $50.00, $100.00 for the second offense, and $250.00 for the third and any subsequent offense. The parent of a juvenile or minor subject to this Section shall be liable for all costs incurred by the County for providing personnel to remain in the company of a juvenile or minor who has been detained as a curfew violator if the parent does not pick up the juvenile or minor within one hour after receiving notice from the County that the County is detaining the juvenile or minor for a curfew violation. The amount to be paid by the parent shall be based on the hourly wage of the County employee who is assigned to remain with the juvenile or minor plus the cost of benefits for that employee. If, after the warning notice pursuant to Section 14-106 of a violation of this Division, an operator of a place open to the public violates Section 14-105 a second time, this shall be treated as a first offense by the operator and shall be a civil violation pursuant to Subtitle 28, Division 3. For the first offense by an operator, the fine may be $100.00, $250.00 for the second offense, and $500.00 for the third and any subsequent offense.