In the hypothetical situation laid out below, what governing entity over DSS could one turn to? In general, what action can be taken against a government entity such as DSS to force adherence to court order?
Suppose a case were brought by plaintiff + DSS alleging defendant hadn't paid child support in 10 years and defendant brought 10 years' bank statements to court proving no missed payments ever. Then suppose the judge declared "this is not an evidentiary hearing and if defendant wants one, I guarantee I'll make it worse for them", and set significant arrears anyway. Then suppose between additional monthly garnishments for arrears, voluntary payments by check and tax refund interceptions, the defendant had to date paid 1.5x the arrears back and yet DSS was still coming after them threatening to revoke passport if they didn't pay it yet again and immediately. And further suppose DSS admitted they sometimes take up to two years to process and apply payments by check and/or intercepted tax refunds so they'll probably keep intercepting and attacking for the next two years.