Garnishment of CD Pledged to Loan

We have a certificate of deposit pledged to a loan. The CD amount exceeds the loan balance by a couple thousand dollars but the original hold was even greater as the loan originated at 60% of its original amount. We recieved a garnishment which will include this CD. Are we obligated to decrease the hold amount to the balance of the loan on the date of receipt of the garnishment and send the excess funds to the court or does the full amount of our original hold superceed this, meaning we would report there are no funds available? I am in Oklahoma if it is a state law issue.