Sorry to hear your dog was trapped, but I firmly believe that's where the ethics portion comes into trapper education. And that's really unfortunate that you've lost a 1/2 mile wide (1/4 mile each side of the road) to who knows how many tens of hundreds of thousands of acres, that's not right.
How do limited mobility or disabled people hunt that area where you have to be 1/4 mile from the road? Or is there just no option to even hunt for an older individual that can't hike a quarter mile, or a disabled person?