The court may find a source of income in contempt, require the source of income to pay an amount according to section 11a(2) if the terms of that section have been satisfied, and fine the source of income if the source of income is served with a notice of income withholding and fails to comply with the notice or to pay withheld amounts to the friend of the court after the order becomes binding under section 11. The IV-D agency is responsible for initiating contempt proceedings under this section. Contempt proceedings under this section may be initiated in any county with jurisdiction over the source of income.