Well, I cannot control how it gets driven during this process, so I choose not to get too wound up about it
. The only real damage they can do is to give it a lot of RPM while cold, but IMO it would take some effort in 80 degree weather with modern synthetic oil to do any significant harm that way. I actually worry more about them hitting something and doing repair work on the body without me knowing it happened.
I also subscribe to a theory that I don't think too many other folks here share: The correct way to break in a car is to let it idle until the oil is completely warm, and then drive it out of the dealer's lot and up the street sideways for as long as you can maintain the drift. Then through lots of stops and full throttle banzai runs for 20 minutes or so. And then change the oil and call it good.
If the engine can't survive that then it was going to fail anyway.