What's the door rate? Around here most shops are around $100 +/- so if they did any kind of useful inspection with a road test, you burnt at least a half hour of their time. I don't think $70 is unreasonable for a walk in. If you were regular customer you might get a pass on some of those deals but I never expect it.

The upselling always annoys me. If they find something legitimately wrong in the course of the inspection, I want to know about it and if it's something critical I'll likely have it fixed while it's there but trying to con you into an oil change just because with some lame excuse about the oil breaks down is just plain crooked.

Kevin