[cuz_it_aint_their_money]

I disagree! As we saw earlier in the show Team Ex-Lax stated to the camera that if it had been any team other than Romber, they would have shared their cab/bus.
I have no doubt, if the roles were switched and Romber were the ones who rolled their truck, Team Ex-Lax would have just thumbed their noses as they hit the accelerator!

[beaureguard]

Yup - I agree.

And, like Rob said, it is a race. What could they have done by stopping and getting out? Get in the way?

He should have slowed down and asked, though. Would have only cost him bout a minute.

[Veto!]

I have no doubt, if the roles were switched and Romber were the ones who rolled their truck, Team Ex-Lax would have just thumbed their noses as they hit the accelerator!

Excellent point! And they'd have cackled as they spewed dust in romber's faces. I'm rescinding their Nobel prize.