Incisional hernia following lapararosopic cholecystectomy is very unusual and usually due to a piece of omentum (fat) being trapped in the incision.
\\\How long will I be incapacitated?\\\
That will depend upon how much pain you have after the operation and what sort of occupation that you follow.If you work in an office and your pain decreases, then perhaps after 2weeks you should be able to return to work, however if it is manual work, then it could be 2 or 3 months before you can safely return.
//When will I be able to drive? ///
That again will depend upon the time it takes for the pain to go and this varies from person to person.......at best perhaps 2 weeks.