I actually have. It's called pad imprinting and I dealt with this issue a lot on my previous G35. Those cars would warp the stock rotors and pads just backing out of the driveway.
But when material sticks, it's hard to really make it out in the shape of a pad. It's usually a line of material like this or splotchy like second photo.
Anyway, with the G35, it was bad enough that if I got the brakes smoking hot (I drive aggressively) and then park the car immediately, upon startup later on I actually had to give a little gas to "break" the wheels free and move. I also had imprints the shape of pads all over the rotors. Every 40k miles id do a new set because it got so bad. Worst car I ever drove with respect to brake warpage.
I'm sure that's not the case in every situation, and some rotors prob do warp like a Pringle, but my latest experience tends to have me not apply much brake after a heavy stop, like bottom of exit ramp.
Oh any the ceramic pads I have on the mustang dust so badly I've cleaned the wheels twice in the 40 miles I've driven it since install. I'll prob be looking for an alternative now