When a warrant as provided in § 31-13-20 is presented and there are insufficient funds in the county treasury to pay it, the county treasurer shall register the warrant and endorse the date of registration on the back thereof and shall pay it, with interest to be negotiated by the parties, out of the first money belonging to such township which thereafter comes into the treasury. Previously registered warrants, if any, shall be paid first in the order of their registration. Call for payment shall be made by mail addressed to the payee named in the warrant at the address left with the county treasurer, or to any assignee who may have left his address with the county treasurer.
SDCL 31-13-21