Use the "Speak Up" link on JB.com. They may give you somthing back.

Realize that everyone was probally stressed at the airport, and tempers can flare up easily.

You always did have the option of rescheduling on Saturday (Which is why most flights from Boston, NYC, Wash DC) to Florida are sold out for most of this week.

But definately talk to JetBlue about it, they are usually more than willing to make people happy