Does cracker barrel have parking for campers ?

Yes, but they may be filled with hungry eaters.

What exit number on I 75

Yes

Usally

normally, unless it's one of the few in an urban area with a smaller lot

Yes, they are located at the rear of the restaurants.

If you park in the more remote part of the lot. Across the street is a Truck parking lot that could easily accommodate a camper.

Barely

Yes sure do

I'm not sure. You would have to check it out first before you go there to eat. Good luck.