That is an insane amount of $ for an oil change.
I gave up on Big O a few years back myself. I had tread separation on my 5er when I was on a trip, so I bought 4 new tires from Big O, along with their road hazard warranty.
A year later, one of those tires needed replaced due to a nail in the sidewall. Went to the Big O near my house and they wouldn't honor the road hazard warranty - said I had to go back to the store where I bought the tires from as Big O is a franchise, and the two stores were unrelated.
No more Big O purchases for me.