Most Rochester car rentals do not provide or allow you to put snow chains on the tires of the rental car. It is unwise to take the initiative to attempt to put snow chains on the car yourself if the car rental company has said not to. You can cause damage to the car that you will have to pay for if you put them on incorrectly, if they slip, or if they are the wrong size. Opt instead to drive with caution and avoid the worst of the snow when you can. Search rental cars on KAYAK