My FiL had his done a month or 2 ago. He was noticeably sore for a few days, and was told not to drive for a week. He's the sort of person who ignores doctors telling him not to do things, but he didn't drive for well over a week, based on the idea that you shouldn't be driving if you couldn't do an emergency stop (without worrying about it hurting). In terms of riding a bike, personally, I'd wait until I was feeling good, rather than just until I thought it wouldn't hurt too much. Your core does a significant amount of work, even on a road bike, so I'd rather be safe than sorry...