Dealer can't fix slide out and warranty running out! HELP

We purchased a new 2018 Coachman Freedom Express 292BHDS Travel Trailer with a large slide out. We had issues with it and twice had it repaired under warranty. The second time they replaced a bend part and when I took it home I noticed the slide out didn't sit flush against the trailer. At the top it was flush, on the lower right side it was out 1/2 inch and on the lower left side it was out of alignment a full 1 inch. I took it back to the dealer he said they would take a look at it. When we first spoke the dealership said anything out of alignment more than 1/2 inch should be adjusted. Since it is out of alignment 1 inch I thought they should fix it. Now it sounds like they feel 1 in out of alignment is acceptable. Since my warranty ends in August 2018 I want to make sure its right. The dealer reassured me that if it is still a problem after the warranty expires they will still fix it because it is an ongoing problem. What should I do? Should I hold my ground and fight to have them fix it? Is 1 inch out of alignment not a big deal? Do I trust they will fix it after warranty period? Any advice?

UPDATE: Dealer said my camper was ready, but when I went to pick it up is was still out of alignment an 1". How do I get Coachman involved to get this fixed right before warranty runs out? They have had it since September 4, 2017.