I-287 Eastbound Tarrytown Sound Wall Damage?

[batt. 12 12]

I noticed when I was driving home from our house in New Jersey that there was a big black mark on the sound wall. I looked at the road and there was also some kinda of debris, and I was wondering if there was a car fire or explosion. Does anyone know?? I is just past the Sleepy Hollow Tarrytown Exit, but before the exit for I-87 Southbound.