You can park inside the port, you’ll see the area as you dock.
There is a restaurant/bar in the terminal building, bit of a walk, but it’s worth it. Remember if you are going there to eat or have a drink, to wear a hi-vis whilst walking in the port area. Take your boarding pass and some identity with you as you will be going through the security gate. They will then give you a gate pass, so that you can get out of the car waiting area through the electronic gate to the bar.