I just received a bill for traveling on a highway ...

I just received a bill for traveling on a highway I've never been on. According to the statement, I was driving on this toll road on a Thursday 12/17/15 at 2PM. Problem is, I was sitting in my office in Henderson, Nevada at this date and time. I have only been to Colorado once, about 6 years ago. I took taxis the whole time I was in Denver.

Can't wait to call customer service to sort this out. From the reviews here it seems like this will be like pulling teeth.

Whatever you do, before you pay these people, make sure everything is on the up and up. In my case it definitely isn't and I have a feeling these people are trying to scam me/steal my CC info.