The driver, Edward Hughes, tells TMZ … this dude hopped onto the interstate bloodied and frantic, waving for the truck to stop … which Hughes says he did. Once he did that, Hughes claims the guy latched onto his hood and started using a metal object on his windshield.

Hughes says he panicked and hit the gas, trying to shake the man off … as he was successfully breaking through the glass. Hughes got some shots of the damage, and it looks like this fella was hacking away during the mayhem, and broke through a bit too.