I'm not aware of any 1982 zinc large date anywhere that would worth grading. It is a common coin, so even with a super-high grade, the coin would only be worth a fraction of what it cost to have it graded.
@lcutler I did clean the coin using a James Avery clean cloth for jewelry. I didn't know that it would hurt the value. Thanks, for sharing that info with me. I will make sure not to touch my coins like that in future. :)