All you need to do is contact the shop you originally bought them through. They can send them back for you or they can at least get you an RA# and explain to you what paperwork and information needs to be included. You have to remember the warehouse they are going back to houses dozens of brands you do not want to just send them back with out an RA#. The local shop should realize that if you do get a new ski he does stand to profit because he should be charging for mounting and final adjusts not to mention you would probably go to him to have tune ups done. Sounds like a poor way of doing business and not a good way of getting you to go back into the store. You should have no problem getting an RA# if you send pics to the Line Dealer you originally bought them off as long as they are with in one year of purchase. I have 100 days on my Bacons and ski hard in the woods and have had no issues. Sometimes you just hit something wrong though and things do happen. Most places will just ask you to send them a picture first, if there is obvious impact some shops will not want to send it back, but most will charge you about $20 if you send it back to them to help cover some of the shipping. If Line does not warranty the ski they will charge you for shipping back. If they cover it they will ship it back to the shop that did the warranty they will not ship it back to the customer directly so you will have to pay some shipping.
They still do great in park, they are considered a backcountry freestyle ski so they still have some versatility in the park.
2014 Sir Francis Bacon - http://www.untracked.com/p4898-14_line_sir_francis_bacon_sfb_freeride_skis.html