Once your vehicle has passed the 24 inspection period, you will be notified that your payment has processed and at that time you can cancel the insurance plan on your car.
When you sell your vehicle to Shift, the vehicle enters "Dealers Inventory" which mean the vehicle will remain in your name until the next owner has been registered to the car. Shift provides a complimentary service of submitting a "Release of Liability" for your vehicle, which absolves you of anything that may happen to the vehicle between the handover to Shift, and the next owner being registered. You are also welcome to submit a release of liability on your own. Please refer to your local DMV guidance on how to begin the process yourself.
If you receive any documentation from the DMV after selling your vehicle to Shift, please disregard. The vehicle may still be in your name, but you are no longer responsible for the vehicle.