Re: Question about Meds...
Glad you came through the surgery OK. I think post-surgical pain varies hugely so I can only offer a guess. The first week after surgery is probably the worst. Not sure what dose of percocet you are on but you could try taking half or 3/4 dose and see if it is enough. Then you coud lower it a bit more every few days.
Re driving... to me it seems very soon. Some people are barely out of hospital at four days! I think it's normal to elevate the foot for a couple of weeks post-surgery. Resting now will really pay off in terms of healing. I don't know how long the trip to school is, but even if it is only 10 mins, if you add on the time to park and walk the kids into school, then drive home again, you could have your foot down for half an hour. This might be too much.
Do you get swelling when you have the foot down - eg when you are showering? If not I guess it is more likely to by ok driving.