You can ask the utility company to pay for your injuries and losses (though note: in terms of a car, even if they are at fault and do pay, they will only pay the lesser of the cost to repair the car or the then-current value of the car--they will not necessarly pay for a new car).If they refuse to pay voluntarily, you would have  to sue them. To win the lawsuit, you would have to be able to prove--1) That it is more likely than not that they were "at fault" in the pole falling, such as by not installing, maintaining, or repairing it properly--if it fell through no fault of theirs, such as due to unusually high winds or hitting it and knocking it onto your car, they would not be liable; and2) The amount or extent of your injuries, medical costs, and property damage.