This program is for those who have tight hip flexors and I think that this program can help you a lot. Driving for prolonged periods really leads to tight hip flexors, and other muscles around it, which will eventually result to another injury.
Here is the link to the program: http://healingthroughmovement.com/order-14/
You may read through it and even consult with your kinesiologist about this if you want. For me, I think this can make a great impact on your hips.