I've traveled with mine strapped to the wall of my enclosed trailer sitting in an Egg Nest many times with no problems. In a table strapped in to the bed of your truck should be fine. Lifting it up and in (and back out) will be the hard part.
Mister Bob, Pitmaster - Bob's Hogs. KCBS CBJ #31759 - IMBAS Certified MOINK Baller