A hit-and-run is the only situation where the not-at-fault party must pay the collision deductible because another driver (and insurance company) isn’t available to be held responsible. The protection will come from your optional liability coverage since basic car insurance doesn’t cover hit-and-run. If you don’t have liability coverage, you’ll have to cover the damage out of pocket. If you’re deemed not at fault, your premium won’t rise. But what you should never do is hide that your collision was a hit-and-run, as you risk losing your insurance completely for misrepresentation.