If the campsites are near the cabins you go under a low bridge. There is isn’t any play it’s concrete. If you have to drive under it to get to your site it’s not going to work.

The check-in rule sheet I received at the park says “vehicles taller than 6’8” are not able to camp in the Bayside campground.” Maybe call them and clarify if it’s 6’6” or 6’8”, because it sounds like it says different things in different places. Update: I'm at the park and checked the bridge - it is clearly marked as 6'-8" clearance.

There is a low, concrete bridge that you have to drive under to get to the tent only sites. I would imagine the height is accurate so I don't think you would want to risk it.