City of Oakland, California v. Desert Outdoor Advertising, Inc.

(1) Whether a court can refuse to enforce a sister state"s judgment because it rests on a penal cause of action or whether it must enforce that judgment; and (2) if a court may decline enforcement consistent with full faith and credit, whether awards for attorney"s fees and costs, equitable disgorgement, and coercive per diem and statutory liquidated damages are penal for purposes of the exception.