Seeking record or copy of marriage certificate

My mom (Ritta Gaspar) and dad (Laszlo Halasz) were married March (11,12,13) 1952; not sure and I have no record or copy of the marriage certificate. I am not exactly sure of a specific day. Also, they were married in a courthouse. I assumed in New York City or New Jersey. I was born in Manhattan at Lenox Hill Hospital, 8 months after their marriage. They passed over 10 years ago and they left no paperwork. Please send me in the right direction. I went to the clerk of Court's office and I was told because of Covid they were closed.