The way it goes in is usuallly the only way it will come out. 22 years in the business and no one ever plans on taking them out, but yet we have all been there to do that. some time we simply cut them up into pieces.
If your dealer is good it will get in, be sure to tip the crew that accomplishes this feat, otherwise get some of your friends and lift it up and through the opening. It is a good spa manufacturer, but remember, even Mercedes has a service department.