Side/window Air Bag problems of the 2010 Nissan Sentra

On July 20, 2010, I was stopped at a traffic light when I was rear-ended by another vehicle. The force of the crash was such that the rear of the car I was driving sustained several thousand dollars in damage. The force also, propelled me into the car stopped in front of me. This other car sustained damage to their bumper to dislodge it from its supports and throw their rear window off track. There is no place in the repair bill that stated that the airbag was reset because it failed to deploy. Given the fact that the rear crumple zone was destroyed, and the rear quarter panels were replaced, this car is rented by budget under the guise of it being safe. The paperwork I received from budget also states that the features of this Nissan Sentra (2010) is front, rear and side airbags. Since all of the rear of the car was destroyed it can be safely assumed that the airbag sensor should have been triggered. If both from the rear of the car definitely from the force of my car being propelled into the car in front of me. Budget rented this car as being a "safe" car with this Nissan safety equipment when it clearly is not.