If you don’t need it, wear your blazer. You may be old but still clearly new to sub zero pre/post flights and long waits for the hotel shuttle. The bottom line is, if you don’t want to spend the money, take the coat and learn to live with all the warmth and protection it will provide. I use mine like a snuggy sometimes. If you are around long enough, DFW and the airports you serve from there most certainly have wicked cold weather. That all being said, why don’t you quit your crying and buy a full price coat with all that bonus money.