Interesting choice of light patten for a ditch light. Generally speaking, one uses a much wider beam pattern for ditch lights because they're intended to light up, well, the ditch beside you. That said, most folks go for more of a flood pattern. (A fog pattern doesn't work well at windshield height.)

The LASFIT pods seem to have a very well-defined driving pattern which is intended to be used for longer distance lighting. Given that, I think you will have much better luck using them as true driving lights - if you aim them straight ahead. This however will give you a new problem of some glare off of the hood. (You will also get some of that with a flood patten aimed towards the ditch.) And as has already been said, you may be over the maximum allowable height for driving lights anyway.

The other thing you might want to consider is a lens color swap. Yes, selective yellow (or yellow from LASFIT) has definite advantages in inclement weather. But you really don't want to run long distance lighting in inclement weather. That means you're giving up some light output with the yellow lens when you really don't need to. Just a thought.