I do, from a lower back injury last year... it can be caused by a destabilized pelvis in addition to spinal stuff, and if that's the case, there are a lot of strengthening hip exercises that can help alleviate the symptoms and take the pressure off the nerve. But the key is knowing the cause so that you don't inadvertently do more damage. The thing that helps me more than anything else is to religiously take stretching breaks when driving longer than an hour.