Take the truck out of park and drive it off the ramp.
From there park the truck in a comfortable space.
If there is any parking fees, either use the company account, or charge your personal card (you’ll get reimbursed).
Make a loop and get the loop over the head of each jet ski.
Unclip the jet ski from the trailer hitch.
Mount the jet ski and proceed to a dock piling
Tie the line around the dock piling and clip it onto itself on the line.
Do this for each jet ski, and leave them tied up without the key in place.