I was installing my custom seat covers on my 2014 Legacy. I pulled the middle seat belt for the back seat around the seat to get it out of my way and then the darn thing locked tight and I can't get it to budge. I have no play in it at all. I can't push my back seats back into place for the seat belt. Headrests were already removed. Before I take it to a garage and probably have the seats removed, any suggestions???