Well you need to tell the game wardens in Overton County that then because i asked him a few weeks ago if that loophole had been closes yet that letting them road hunt at night with hand held thermals and he said nothing had changed. Good to know he is not correct.
First and foremost, I am sincerely sorry that you are having to deal with that crap. It would be frustrating to me as well.
If the officer was talking about the "loophole" of having a thermal imager and a firearm in a vehicle on a public road, he/she was telling you correctly. State law over rides TWRA proclamations passed by the commission. When the state passed statutes allowing the carrying of firearms in vehicles, that trumps TWRA Manner and Means. I would guess that the conflict between the law and the proclamation has been discussed with his/her DA who has advised that he would not be willing to prosecute such a case.
So, basically, until one of the poachers shoots, there wouldn't be much that the officer can legally do. And, they do not have the time or manpower to babysit your property.
If you are not in agreement with the way it is being handled, you need to go on up the chain of command. That goes all the way to the Executive Director. Taking frequent pot shots on here at the agency isn't at all productive.
But, the above does not mean that you are correct in stating that there are no regulations regarding the use of those devises. The Manner and Means Proclamation is pretty open and shut outside of the vehicle issue.