yes, I commute in road shoes:

I'm very fortunate. my commute route is thru Pebble Beach, at work I have a bike locker to secure my bike and an employee gym to use with showers. My route could be straight to work, less than 5 miles. However, since I like to ride, I typically stock up at work with clothing, etc... and I get my rides in on most days, simply ending my ride at work, where I have recovery drinks stashed, etc...

I use Sidi Ergo, with Shimano Ultegra pedals. the cleats have some rubber on them, and are easy enough to walk in.

mostly I work in the afternoons, getting off work late at night. often I stop at the grocery store on the way home, and yes, I walk around the grocery store in road shoes. no problems.