Serious. Nebraska Motor Vehicle Safety Responsibility Act is written for exactly this, and the state can require proof of financial responsibility and can require that the damages be addressed before restoring your driving privilege.
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An at-fault accident while uninsured is the most expensive version of this problem, because there is a private claim and a state action running at once. The private side is straightforward and unpleasant: without liability coverage, the damage you caused is yours to pay, and the other party can pursue it. The state side is the Motor Vehicle Safety Responsibility Act, which gives Nebraska the ability to condition your driving privilege on demonstrating you can pay for future harm. Two pieces of advice are worth stating plainly. Get a policy in force now, because everything from here is priced on the gap and the gap is still open. And where the damages are significant, this is a situation to take to a lawyer, which is not something this site or any insurance producer substitutes for.