What I did was drive to the city dump. They charge you by the weight of the truck before you go in vs. when you leave. I drove up to the window, asked the 80 year old battle axe with a cigarette in her mouth if I can weigh my car, and she points at a digital sign. It was 3360 with me in it, if I remember right. My bright red Mustang could not have been more out of place in line with a row of huge dirty dump trucks full of garbage, but what the heck, it was free and only took a minute!