One of the best things you can do for your neck is give it traction. This helps you do that with ease - you don't have to fully invert but can do Downdog and still get the benefit to the cervical spine. Inverting is contraindicated for certain conditions, check with your MD first.
Get a massage while your drive! and at home too
Massage Gun with extender to reach mid-back (Please never use the massage gun on the front or sides of the neck)
Cervical Traction
Kinesiotape
Wear in the car or whenever. 20 minutes and you'll get a posture boost. Good for shoulder issues.