3 ms·You can drive a car home without insurance. A quick google suggests californias grace period is 30 days.by jncfhnb 3y agoYou can drive a car home without insurance. A quick google suggests californias grace period is 30 days.yumraj 3y agoIt may be allowed, but who pays in case of an accident?jncfhnb 3y agoYour prior insurance covers you for a while