If you have a bike with clip so that you're using the foot to pull the pedal up, you'll be able to do it. It will take some of that PT time but you'll be able to strengthen it more than I did mine. If your talking about bike that you just push on pedal, probably no impact other than reducing pain.
I don't know about time for long trip, but I was able to drive on day 4 or 5 and really didn't have pain after 1st day. If you stop about once an hour to walk and stretch for 5-10 minutes, you could probably manage it fairly well after the first couple weeks as a passenger. If you're driving, it would depend on whether it's your right or left and, if right, how much you be able to use cruise control.