Parking with specialty plate?

Hey y'all I promise I tried googling and searching this before coming here, but here goes: I recently got a new special interest license plate (save the bees!) and I noticed on my registration card that my license plate number on there includes the two little letters on the side. If I go to park in one of those pay lots that makes you put in your license plate info do I need to include those or just list the big ones?? I've had friends get booted/ticketed/towed for mistyping their license plate info so I don't want that to happen to me! Anybody have the tea?