We called U-Haul. They do not do tow bars. :-(
They mentioned "Hitch World" in Largo. Problem was when I looked up Hitch World it had bad reviews. So I was a bit worried about trusting Hitch World.
Of course some scathing reviews reflect a difficult person with unrealistic expectations. I'm hoping to find out if anyone in this area has had experience somewhere that impressed them as competent and fair.