I see that you've come up with a solution so cancel this post

As it has been said--Your situation SUCKS! If the only option is to baby sit the truck and trailer while the repairs go on at least you'll get paid. However I'm sure it'll mess up your driving log and thus your schedule.

Look on the bright side---#1 if you're stuck in the truck you'll have air conditioning and #2 at least you're at a Grocery Store so you won't starve--

Hang in there my friend