Yeah man, just do whatever floats your boat. If you introduce something like barbell squats or something like that, just go real light and play around with how it affects your cycling and your recovery. I am a believer that your body will adapt to most things as long as you eat and rest adequately.
I don't road bike, but I have done plenty of mountain biking and heavy squats in the same week and recover just fine. Your legs are never "fresh," but it really isn't that big of a deal, unless you just hate the feeling of a worked body all week