Nope.
You will void the Zipp warranty. Regular brake pads have an abrasive additive that will ruin the brake tracks of the FC's.
Zipp approved brake pads are: Zipp Cork, Zipp Carbon/Carbon, Swiss Stop Yellows, Bonty carbon pads.
Brake pads take 1 minute to install, 2 if you drink a beer during install.

Edit: The rental company may be able (or should) set you up with the correct brake pads, if they want to save their wheels.