It felt like thirty, but in real time it was probably 3 to 5 minutes
That's a long time on a run away, good luck on a fix, and keep us posted on your progress.
Hopefully your insurance will cover the damage
It states to put it in gear and let out the clutch. I had a friend with a Car 3406 and the ata filled with oil from a leaking turbo seal. Once the oil in the ata got high enough that the engine was able to start pulling it in, it ran away. He put it in gear and let out the clutch and blew the trans. The engine was making so much power on the oil, was no stopping it. Finally threw a rod through the block and that was that.