Walked up near the end of boarding, they were likely going to put me on as they had 2 seats left. But, as soon as they realized I had a checked bag they said policy is that you must fly with your bag, which i know isn't right, especially for a domestic flight. International flight, sure.

Anyone rolled the dice and just said no checked bag?

I am booked on the next flight approximately 3 hr later. If I would have gotten standby, would have saved me about 3 hr.