I do not think anyone can say for sure if a SRW would have held on or not. It is proven though that it takes close the a 1/3 greater joules of force to push a DRW sideways compared to a SRW. This was based on Static friction and never saw a test on kenetic friction but am sure it is out there if someone wants to look.
@mad
I did not read your entire post, Are you trying to say it does not matter about the truck only the tires and what they can hold? If you are I do not need to hear anymore.