FWIW - consider yourself lucky!!
I am on the freeway in Houston (regarded as the city with the worst drivers) at speed with the traffic in the middle lane (my usual lane to avoid the fast driver to my left and non-looking merging drivers on the right).
Suddenly, the small car I was following made an abrupt shift to the right - cutting off the car that was alongside of me.
It was then that I saw the 2 foot long piece of 6 inch 'C' channel iron!! I had no way to miss the thing - there was other traffic on both sides, moving at about 55!! Yep, it ruptured my right front tire. Fortunately, I had installed a 'Steer-safe' and eaily maintained control until I could move to the right and then to the shoulder. I carry a mounted spare (22.5 - I cannot lift it!!) but the Good Sam guy easily removed the blown tire and mounted my spare. I asked him about obtaining a replacement and he advised there was a good dealer about 3 exits further along - where I replaced the spare. Repair to the compartment behind the tire was actually a rebuild of it and the steel bent the steps so bad (they were in the retracted position) they too had to be replaced.