According to Progressive, the best types of hail protector for a car are personal covered parking ports, temporary shelter such as mall parking garages, and car covers or blankets. Temporary shelters, such as mall parking garages, are useful for waiting out storms to avoid vehicular damage.
Knowing how often hail falls in an area is helpful in determining whether or not to invest in personal covered parking ports. If hail is a common problem, it is useful to have a shelter on hand to avoid vehicle damage.
Car covers made for a specific car mitigate damage done by hail. If no such covers are available, securely placed blankets can provide protection for the car.