What happens if Southwest cuases a delay and I am parked in the parking structure. Are the adding parking costs my responsibility?

they should be but you prob won't get them to reimburse you

They are but talk with the airlines

Yes. Parking is separate from airlines.

Most parking facilities are flexible and will let you out free of charge in the case of a canceled flight.

Yes they definitely will add up

Of course. This would be the same at any airport. Airport parking doesn't know or care why you parked as long as you did. You pay for the time.

Yes

Yes, you could try and sue southwest for the fees but your court cost will more and likely be more.

Not sure

Yes, you are responsible for your parking time/payment.

Yes. Parking costs are not airline related.

More than likely