The surrogate parent of any child appointed pursuant to § 10-94h shall have the same right of access as the natural parents or guardian to all records concerning the child, including, but not limited to, educational, medical, psychological and welfare records. No surrogate parent appointed pursuant to the provisions of said § 10-94h shall be liable to the child entrusted to such surrogate parent or the parents or guardian of such child for any civil damages which result from acts or omissions of such surrogate parent which constitute ordinary negligence. This immunity shall not apply to acts or omissions constituting gross, wilful or wanton negligence.