I live in northern Boulder County and I didn't find the experience to be too bad. I waited a day and hardly noticed any issues (biggest issue was no shoulder or center line stripes for 3-4 days). There were the normal number of daily riders on those roads so I wasn't alone in my thinking. The county claims to use smaller gravel to make things better for cyclists and I thought the process was much better compared to pea-sized gravel I'm used to riding on back east.