At Miami International Airport Alamo car rentals, car hire services are only available to those with a valid insurance plan. Alamo has every right to decline to sanction a car rental deal with you if you don't have insurance. However, there are some situations in which you can reserve an Alamo car at Miami International Airport without needing to purchase extra coverage plan. The first scenario is when your credit card insurer offers an extra plan that covers you as well as the cars you hire while you're overseas, and the second scenario is when your initial cover already includes a plan for overseas rental pickups.