Ah. yes that is an issue.
Retcon it to two vans? one for the others, one specially built for heavy SCPs? (in this case Al)
I think its safe to say the foundation has the resources to build a stronger van than the standard, and they need to transport them through heavily populated areas anyway. so some method must be possible.
Edit: it already was two vans. 10 points to me. Making the adjustments, and specifying one of the THREE is specifically for Al.
I am sorry I have seemed such a derp while making this so far.