[Arctic Fox]

I have never had occasion to use a SmarteCarte at Orlando airport but may need to soon, and I don't want to be standing around the rack trying to release a luggage cart and looking a right Wally.

The obvious solution is to send Mrs Fox to do it, but just in case she rumbles my arch plan:

How do they work? Do you have to insert a credit card to release one? Does the rack take cash?

Thank you