My commute to/from work is a joke, being only 2.3 miles of paved city streets with sidewalks, so I have nothing to worry about there. However, when I get out riding around in town actually going place that's when I have more interaction with drivers. I've luckily found that most don't have a problem with sharing the road with me. A few isolated incidents of honking and yelling, but I just roll my eyes and keep riding. Also, we do have public transportation and all of our buses have bike racks on the front that hold two bikes. On occasion, if I need to get somewhere quicker than I can with my bike, I'll ride down to the main transfer point and catch the bus going west to cut down on time/distance. It costs a buck and works out really well.