Here are a few options:
1. Stop by the gas station and make sure you overfill your tank. Pull the car away from the pumps, then call 911 to report the spill. Do this a few times until the guy gets aggravated with the process of dealing with these 911 calls.
2. Leave something on the gas station property (or adjacent to it) that makes a god-awful stench. Freep-mail me for some ideas on this.
3. Alternatively, you can leave something that will attract large numbers of pests (stray dogs/cats, rats, etc.).
4. A pellet gun to disable the exterior TVs would be a last resort.
I would absolutely suggest that any contact with the gas station owner -- or anyone else in that town -- should cease immediately. Better yet -- patronize the place regularly and wear earplugs or something so the owner thinks you've come to grips with the noise. If you come to be known as the person or family that was complaining about it all the time, you'll be the prime suspect in any of the things I've listed above.
I enjoy your creativity. Skunk scent used in hunting is very potent.
I learned to only put it on my boots and don’t wear the boots in the truck!
I have done some naughty vengeful things with skunk scent.
The gas station can be unbearable to frequent if it used covertly and effectively.