Well, first let me thank everyone who has responded so far. It appears that most, if not all, agree with my position that thinner, but sill completely operable, brake pads will not cause a brake rotor warping condition.....
Now, the results of the "service:" The service writer called me back today to say that they decided to do the rotor resurfacing at their cost. All I had to pay for was the brake pads and labor to install them into the calipers ($55 for pads/$17 for labor) I'm not sure why the change in position, but hopefully, it was due to the fact that I made a plausible case on why the pads were not the culprit.....mind you, I still am a bit put out that they resurfaced, rather than replaced, the rotors; however, WHEN they warp again, it'll be out of warranty, and I'll just put new ones on myself (kinda sucks, but I guess you got to pick your battles)
Incidentally, for all that had asked about how the car had been serviced: The service writer told me the car had been purchased there and had been maintained, by the book and on time. Made me feel better about what services I didn't know about........maybe when a Lexus changes hands, any goodwill built up by the previous owner goes to zero and the new owner starts from scratch???
Bottom line: I'm not nearly as put out as I was yesterday, but I think it was a patch job and not a "done right" job....oh yeah, among several other items/issues that were not warrantied - the front left composite headlamp unit has some interior "fogging" going on. No cracks, splits, etc. in the housing or "glass," but I was told that wasn't a warranty item, because "they all do that."..........I've had 58 cars and have worked at a couple of high-end dealerships. I would have expected this attitude from several different makes, but not Lexus (I even found their customer service to be somewhat lacking)......The upside: Driving a high-end Japanese car means you don't have to see or talk with them very often!!!
dnp