He means "packed to prevent damage when transported by truck".
This could be stable boxes, perhaps with packing peanuts or styrofoam, foil-wrapped on a pallet, liquid in approriate containers... whatever fits the goods.

He means "packed to prevent damage when transported by truck".
This could be stable boxes, perhaps with packing peanuts or styrofoam, foil-wrapped on a pallet, liquid in approriate containers... whatever fits the goods.

Edit as requested:

TheFreeDictionary gives the following definition for word-combos of the pattern [noun]worthy:

-worthy
a combining form of worthy, used with the meanings “deserving of, fit for” (newsworthy; trustworthy), “capable of travel in or on” (roadworthy; seaworthy) the thing specified by the initial element.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

So using this definition:

-"truckworthy" means "fit to be transported in a truck" and

-"truckworthy packaging" a form of packaging that ensures said quality. For examples, see original answer above.