My wife did this morning. In Colorado, the early voting takes place at the DMV. Since she had to register one of our vehicles, and her "number" was a good 30 away, she went ahead and voted.
DMV had only processed 10 people in the time it took her to get through all 4 stations and ID checks etc. So I cant image that there were many people voting ahead of her.
I will go there this afternoon and do the same. After the lunch rush.
Our voting place was in Aurora--not at the DMV. I'm not sure what the building is all used for but Community Support aka Government "Freebies" had a huge line.