LB has a North American warehouse now. If it is in stock, they say you can get things in two days. I have no idea on the warranty, as my wife is so light I dont think she will ever damage a rim. I bought them back when LB first started (5+ years ago) and they are still going strong. I imagine you would be out of luck for at least the same 1-3 weeks as your friends were should you meet their stringent warranty requirements.
Crash replacement is 10% discount? Yikes.