Just because you have a ticket doesn't mean you can refuse to leave the plane when asked by the owner of said plane. Many people with tickets have been booted from planes for many reasons.
That's true. I don't think it would take long for the police to figure out what's going on though. Asking United to explore all of their options before applying force isn't unreasonable. United can ask the police for help and the police can say since it's not an emergency, we'll get there when we get there.
