i’m going to assume that when they put the dirt bike into the back of the truck they used a ramp (or a jimmy rig ramp), and then loaded the ramp in the bed of the truck to be used when they take the bike off.
to take it off, it depends on how big the bike is. imo rolling off a 250 is much different than a 450. the truck is standard height avalanche it’s not that far off the ground.
i just am not getting why one wouldn’t take the bike out when you’re about to embark on a 6+ hr drive to an appointment in town just to then leave the dirt bike unattended while you go inside, leaving it open to being stolen. we don’t know the confirmed nature of this errand so i’m just assuming it’s some type of appointment... and why bother going camping at all if you have to just turn around for this errand.
the answer can be as simple as “because i wanted to” but it strikes me as unusual.