I don't climb in and out of trucks very much (OK, well, never in a kilt as far as I can recall), but I find that if you can swing the hips, sweep the pleats and sit all in one smooth motion, you have a better chance of not getting your kilt in a bunch. But my favorite advice given on this topic came from someone who said not to worry about it all that much, since to worry and fuss about it would not be manly.

Regards,
Rex.