Like it gets heavier as it's sitting there? Kinda stupid. If the VX was gonna break it would already have done so - sitting for some length of time doesn't change the state or forces of gravity bearing down on the truck. Now if the moon left its orbit and created some type of gravitational change, it could potentially cause an issue - of if when pulling it up there the truck was on the verge of breaking, the wind could push it over the edge - but that doesn't seem very likely to me.

Make sure you tell those guys from me that they're idiots.

-- John