You can often just show your current insurance card as proof of coverage to take delivery.
If you do not currently have a policy, you must set one up you can drive the car home:
Getting Insurance for Buying a Car on the Weekend | Allstate
You must officially add the new vehicle by providing the Vehicle Identification Number (VIN) , make, and model to your insurer before the grace period ends.
You can often just show your current insurance card as proof of coverage to take delivery.
If you do not currently have a policy, you must set one up you can drive the car home:
Getting Insurance for Buying a Car on the Weekend | Allstate
You must officially add the new vehicle by providing the Vehicle Identification Number (VIN) , make, and model to your insurer before the grace period ends.