The chief was initially suspended after he was charged with insurance fraud in April.
City Manager Stephen Lo Iacono says there's nothing the city can do to prevent Zisa from cashing in unused sick time because it's in his contract.
Lo Iacono denied Zisa's request to be paid for 115 compensatory hours because there's no provision for that in his contract.
Zisa is paid $191,606 a year.
