Went to JL once. Practically wanted to rebuild the engine just for having some dust on it. Just the oil and filter thank you.
Drain plug never went in the same after that one service. Never returned. I assume most are good, I just have bad luck. Overselling other maintenance is par for the course for just about all dealers, chain outfits and many independents.
I would sooner buy the oil, filter and drain pan on the road and do it myself than trust these clowns. Dispose of properly on the road should not be hard.