Hi. First, get a good, nicely padded board bag. Keep the board in it as much as possible, when transporting or storing. Remove the fins when you'll be doing any driving at higher speeds and putting the board on a roof rack (I might leave them in for a very short, slow drive around the spot, but that is about it). As long as you are careful when removing and installing the fins, there should be no extra damage to fins or the board, so you can do it every time. I don't because it is inconvenient and I have plenty of room in my truck. I put covers on the fins and then put board into the bag. When removing the fins, be gentle loosening them. You may want to do it by first loosening both screws a little and then tapping the top of the screw thru screwdriver to knock the fin loose.
Try to avoid overheating the board. For example, if the board is left in closed car on a hot day and venting hole is plugged, skin may de-laminate (form a bubble). I believe your board has an "automatic" vent - goratex type, which I think is unreliable as I did see North LTD 2011 with a major de-lam on the bottom. if you have a vent screw, it needs to be loosened to let the board vent if there is gonna be larger temperature or altitude change (driving over a mountain).
These boards are so fragile that some damage is more-less inevitable, so have a good quality epoxy available at home (not the 5 min type) and learn how to do repairs.
http://www.boardlady.com is an excellent source of information on repairs. It is important to keep water out of the board so carry some sort of ding repair kit or marine epoxy putty, so you can seal a crack in the skin right away.