Anonymous on 7/27/2015 3:38:18 PM:
Here is a 'Parking' spot that I know is safe; however, it is maybe too far to the west of "east" for you .... as it is just east of Rockmart; plus, it would cost you $15 or so per day. It is a well run campground called The Rock that has been in business for years. If you chose to inquire with them you will probably find that Lydia is your point of contact, and John is the owner. Here is the webside with the "Contact" page:
http://www.therockrvpark.com/reservations.html
They are available by phone, as well, however, I have found that Lydia is even more responsive by email.
Best wishes on good Silver Comet fun :- ).