I do not think the shooting had anything to do with his arrest at all. I live in the town of Temple. Where he was is not very rural, and there is a ton of traffic on the road in that area. A passer by called 911. That is a causing alarm when someone calls police about it. I wrote in on of my precious post about my experice with TPD when being stopped, and visably armed. The SGT refused to turn over his weapons while the police were sorting things out. It is very legal for an officer to have the person turn over the weapon for the duration of a stop for officer safety.
The SGT had a chip on the shoulder I know better than you attitude with police, and refused to comply while visably armed with the weapon in front of him. If he is luck he will pay a fine, and get probation for the misdemenor.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.