Different set of circumstances, but I was on a flight last January that was diverted to LAX due to weather at SNA. The storms cleared and the flight went on to SNA....arriving a little over an hour late.

All told, not that big of a deal. Pax were given the option of deplaning at LAX if they wanted, but were told all check bags would be going on to SNA. Also, there was an announcement that if the plane wasn't able to continue on to SNA in a timely fashion, bus transportation (presumably including the checked bags) would be provided.

The flight was full (MD-80, IIRC), and I'd say about 15-20 pax opted to deplane at LAX.

What was made more clear than anything else....via repeated announcements....was that absolutely no refunds or reimbursements of any type would be provided to anyone opting to get off at LAX.