Discrimination Against Transgender People at a Store in Texas

I am a 38 year old transgender female, here in Snyder, Texas, I have been shopping at this store on College Avenue ever since it was built on the old west2go property, and have had no issue

But today, I went in the store to get my everyday usual, a 44 oz fountain drink. and after I fixed my drink, I placed it on the counter and went around the corner to the restroom–the ladies room.