The penalty for a first offense for driving without liability car insurance varies from state to state.
Some states will fine you. Some states will suspend or revoke your registration for a period of time. Some states may suspend your driver's license. Some states will put you in jail. You may have to do community service. There are states where they will do a combination of these punishments. And, there are a couple of states that will not punish you for a first offense for driving without liability car insurance. Again, it depends on the state. Follow this link to learn more about insurance auto state regulators.