My thought is - if it's so easy to take right off the truck then how does it hold up to dirt, stones, water, salt, etc?
After I fished I let it dry over night and on the very bottom of the rocker where its not visible and tried to scratch it off and I couldn't...the only way you can get it off is if you get a good edge to peel it which takes a little work to start and a rock isn't going to be able to peel it off...so pretty durable with enough coats.