Aluminum Ramp found

I lost one too as I was driving up a hill on the I-10 here in Los Angeles. I found out because some guy told me driving next to me. I went back about 5 miles and then came back on. Once I saw it, I pulled to the side and you see cars just smashing it. The ramp has a huge dent probably from a semi. I picked it up as soon as I had the chance. I had to lift it up and carry it with me up the hill about 100 yards. And my ramps weigh about 100 lbs. They're not aluminum