Same here in Northern Colorado. Only blemish today was my chain broke as I arrived at work and didn't have the right tools to fix it properly. As a result, it was gimped on the way back and was skipping one sprocket tooth everytime around. Wouldn't you know it, this is the day a roadie comes up behind me and passes just as I was settling down to cruise (fellow bike traffic is rare on this stage of my commute). Little did he know, I hadn't reached my cruising speed when he passed, so I tailed him a few bike lengths back for the next 8 miles or so. I doubt he was expecting me to keep up, as he was carrying a banana on his late model carbon trek, while I was fully loaded for commuting with laptop, bike tools, change of clothes etc. all on my 78 Motobecane with a gimped chain (there is the odd hill on this stretch, by the way). I had plenty of reserve to challenge him, but the chain wasn't having it.