That's going to leave a mark. I'm curious, will you get a bill for the electrical post, sign, etc? I never thought about it, but last time I got in an accident and mentioned to my insurance that I took some damage from the curb they wanted to know if there was damage to the curb, any signs, etc, and made me wonder if that did happen would there be a bill? At the time I was driving a Corolla, and answered: "uhm, no the concrete curb won."