Immediate public assistance shall be rendered promptly to any needy person by the director of welfare of the municipality or the county welfare director, as appropriate, where the person is found at the time of application. Needy persons residing in public or private facilities providing residential therapeutic medical services shall be deemed the responsibility of the municipality or county, as appropriate, of their customary place of abode prior to placement in such facility.
N.J.S. § 44:8-120