CAR RENTALS ?? - Galveston & Mobile

Hi,

I tried doing a search, but kept getting errors, so I thought I'd ask -

Does anyone know which car rental agencies in both, Galveston and Mobile, are close to the ports and/or offer free shuttle rides to/from the ports?

Any help would be greatly appreciated.

Thank you!

I only know about Galveston and only enterprise is on the island, closed on sundays.