There is parking nearby where people park trucks and RVs overnight but I don't know if it's run by the restaurant or one of the nearby hotels. As Jose suggested, call and ask.
Don't know call and ask
Yes
Each Cracker Barrel is different - call ahead and talk with the manager. They can give you time frames and information for safety aspects about the area if they give the approval. Of course make sure to help support their business eating there if you are able.
No
More than likely not endorsed by restaurant due to liability issues.
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