I thought about them but decided against getting the Cipa, because as you noted, the website indicates they will not fit mirrors that are heated and have lights. It is interesting you saw them on a Laramie, I wonder if they do fit, but block the turn signals and puddle lights. If they do not work for you you might try looking at the McKesh tow mirrors, they are excellent. I used them on my previous vehicle and now use them on my Ram.
Here is a link: http://hensleymfg.com/products/mckesh-mirrors/