Just wanted to put out that Houston, Texas actually has a lot of rural farm land. I grew up on the outskirts of Houston down by NASA. You might think a technological center of the US like that would be hyper modern. My front yard had cows in them, there was a farm literally right next door, and we used to have to drive 20 minutes to get to a grocery store.
Don't take this as me defending ANY of this. I'm just explaining that there actually are a lot of horses in the area. Obviously I don't think Cops should be using them, though.