For others who might be in the same position, it might be worth contacting your payroll processor. Ours, justworks, indicated that we could wire them the money

For others who might be in the same position, it might be worth contacting your payroll processor. Ours, justworks, indicated that we could wire them the money on the invoice processing day and still make payroll. (That will be either Monday or Tuesday, I forget which - we somehow got really lucky; our payroll ACH got pulled right before the shutdown)