This was the correct procedure to follow. See generally, Atlantic Ambulance and Convalescent Service, Inc. v. Asbury, 330 So.2d 477 (Fla. 4th DCA 1975). But cf. Ward v. Ochoa, supra, and Weinstein v. National Car Rentals, 288 So.2d 509 (Fla. 3d DCA 1973) (where true "Mary Carter" Agreement exists, set off is an insufficient remedy).