First year on 4 day we kept rental car and paid to park. Last year on 7 day we used Avis, returned and picked up, no problems. However this year I wanted to fly to Tampa, spend 2 days at beach, Universal 4 days, and then cruise and fly home from MCO, same cost as flying home from Tampa. But when I go to the Avis site I cannot pick up at Tampa and return at the Port. It says to call Avis. My question is, "Has anybody done this?", rent at Tampa airport and return at port. I have not call yet, asking first from the experts if this was none.