At least three car behind a small truck doing 60,then I felt something hit my right hand side Boot,then a loud CLANK!!!

It hit the swingarm then my tyre.
Pull it out on sunday night when I got home,Iam still riding to work has'nt gone down yet.(nasty mark on the inside of the armfrom riding home at 40ks)
I know I am up for a new tyre SSSShhhT just what I need before Christmas
ps
Lucky I guess??!!!