was this one of you guys??

Well I had something similar happen to me, with a better result. I fell asleep and the rumble strips woke me. As you can see from the video below the truck swayed quite a bit. I did have both Torklift stable loads and a superhitch & supertruss. I figure both probably helped. I did not have time to think about manually applying the trailer brakes as I had only just woken up.

This highway was in Nevada, BTW.

Asleep