They appear to be unaffiliated. Both on Foothill Blvd. (old Route 66) in the Fontana/Ontario area. Fun fact: one of them doesn't even warrant a search result in Google Maps.
Next Mission: something that shares its name with a Disney Princess (Aurora, Moana, Belle, Cinderella, Merida, etc.-- and yes, I guess technically Leia is a Disney Princess now)