Car Rental at Port

We have never been to SXM on a cruise so have never been to the port. We will be visiting SXM for a day on a cruise in June. We would like to rent a car at the port for the day. Our usual agency can not rent at the port. Has anyone been to the port in the past month or two that knows what rental agencies are there and what time they open? Thanks in advaance

I recently used Coastal....David York is owner...easy pickup and drop off...

Did you reserve ahead of time or was there plenty of cars there