Thank you, everyone, for your advice. The inconvenience of going to and from the airport doesn't actually bother me. I'm traveling solo, so I wouldn't be going back and forth to the cruise port to pick up anyone. The extra time is worth it to me to save $50, which is more than just a few bucks. That's a 72% price drop compared to the cruise port.

I was hoping to find someone who has actually rented from Alamo. I know that people are more likely to leave a review when they have a bad experience, so I'm wondering if there are people out there who actually didn't get taken advantage of by this Alamo location.

I'll consider renting at the port. Thanks for the advice on Hertz (I just made a reservation with them, also $69 but with no deposit like Coastal wants). I'll send Kennys a message to see how much their friend would charge, too. Still undecided on what I will end up doing, but thanks again for your help!