How to RescueEdit
In the Kitchen, jump on the foot switch on the fridge and enter as Bungalow. Switch to Rico and climb up to the top, and press the switch there (don't shoot it) to unfreeze the ice. Move back to the bottom of the fridge but don't exit. Using the 'ladder' nearby, you can enter the bottom shelf. With the ice now defrosted, you can swim under the floating container to save Juan Luis, who is waiting on a block of cheese.