I looked at my straps and @Hardway's photo as well.  It looks like the ratchet tie down on the U-Haul can be adjusted side to side.  See photos.  If you rent one of these trailers, definitely check this out before you take a trip.  Mine worked out fine, but, it's ideal to have them centered as pointed out by @Captain Obvious.

 

Glad to help!    I've used those trailers a grand total of thrice now.

Once, as the apprentice, helping jfa.series1.
Once, as the teacher, hauling my sons new car home.
Once, as the supervisor, hauling my buddy's 260Z to the paint shop.

Those hold down strap system is pretty sweet.