Ouch! What did he hit?

When I went by Gavers at Lake Avenue and Kimball, Woodstock, tonight, there was a tractor-trailer unit hanging on the back of one of Gavers' large tow trucks.

The whole front-end was torn apart and the wheels had been broken loose from their regular positions. What did he hit?

Gavers probably covers a pretty wide area with their larger trucks. Anybody know where this truck got mangled and what happened?