If you're a Costco member the Costco travel site has some great deals.
Not knowing your travel dates, I plugged in July 1 to July 12 and got the following under Intermediate Specialty under Alamo for Maui (OGG):
Wrangler S 2 dr or similar, automatic, unlimited mileage, additional driver included.
$375.33 + $160.95 in taxes and fees for $536.28.
You might want to check it out, using your travel dates.