The Insurance Information Institute suggests that you take the amount you'd pay in one year for comprehensive and collision coverage, and multiply that number by 10. Is your car worth less than that number? Then comprehensive and collision coverage might not be a cost-effective option for you. In other words, you might want to talk to your agent about whether it makes sense to include these coverages on your car insurance policy.
Bodily injury coverage is written with two limits: the first applies to each person; the second is related to each accident. As an example, minimum recommended coverage levels are usually $100,000/$300,000, which translates to policy limits of $100,000 per person in an accident and $300,000 total per incident. Required coverage levels vary by state, but can be as low as $10,000/$20,000, which is hardly sufficient for a serious accident.
It is the rare occasion where you hit something while driving and it is not counted against you as a responsible accident. Most states and insurance companies will not consider this kind of claim a responsible accident. Contact your insurance company to find out how they view this and make sure that there would not be charges associated with a comprehensive claim.
If you have paid off your car, comprehensive coverage is optional. It may be a good idea to find out the Kelley Blue Book value of your vehicle. Would you be able to pay that amount to repair or replace your vehicle if it were stolen or damaged in an accident? If you can't afford to pay much out of pocket, then buying optional coverages, like comprehensive coverage and collision coverage, may be a smart investment.