I had just looked online for some deals yesterday. The sk combo is advertised at $99, regularly $149.
What you saw was the SK REEL, not the combo. The reel alone is advertised at $79, reg $129. Most of the big box stores don't accept online prices for matching. Sounds like he was right about the price but wrong in how he handles a customer. He should have known his own sales well enough to correct you on the problem. Walking way from a customer is never good from a salesperson, let alone a manager. If you were causing a disturbance about it then he should have asked you to leave. If not then he should have dealt with it. Call the district manager and complain.