No, that will only give you a partial return. You still have to recharge eventually, otherwise you would have a perpetual motion machine.
You're either missing the point, or ignoring it. Yes, you will eventually have to get gas. Duh. It takes energy to stop a car too. Energy that is wasted in conventional cars, but in hybrids can be at least partially stored. In the same manner, hybrids' engines shut down when not needed to provide propulsion.