drafting alternative?

[Telco]

I consider drafting close behind large vehicles to be too unsafe, but then got to thinking about alternatives to this. What about a prespoiler that sits about 2ft in front of the vehicle,, no more than 2-3 inches tall and wide enough to go across the whole front of the car, in a wedge shape that would divert air both up and down with more air being diverted up, attached to the nose? If this worked, it would disturb the air before the car itself got to it, while presenting a very small face to the wind. The very small face should present very little drag, might it eliminate more drag on the vehicle overall than it adds? If so, then this would mean you could "draft" everywhere without having to follow a semi too closely. All you'd need is a pair of thin brackets strong enough to stand up to the wind, with a crossbeam like an extra bumper across them, to predisturb the air before the car gets to it.

This is not one I'm willing to try myself, but as some of the folks here seem to like the off-the-wall aero improvements I thought I'd throw it out.