Robbie is correct about the guide book All the Aires which can be bought
here
My reason for the link is that it is a crap website to find anything on the first time you visit.
It is an invaluble guide for France on a budget.
Many Aires are free ( even in summer) as they are provided by the local comune. The idea is simply to attract visitors into their villages to stay and make purchases. You will be shopping or buying fuel anyway so why not do it where the facilities are laid on.
As for Bacon in France, it is available but hard to find. Dont buy anything in a large supermarket labeled as Bacon as you will find it is little circles of cured pork. Ask for poitrine fumée in the boucherie, this is about as close to streaky bacon you will find in france and it is fine.
As you have said, live like a local is the secret to a real french trip.
Just go and enjoy it..