Wow.. that pretty random to have just a roof rack bar fall off!

I've always had good luck at Alma Imports Its a salvage yard, and i've been there a few times to find some goodies. I picked up a tow hitch, spare tire and some Roof Basket bolts there myself, very decently priced. I say give them a Call, because i know its pretty far from where you live.

Also, i would say if they don't have it, then just wait until they do, but i wouldn't go out and try to find a new one in a hurry.

Oh, you may also want to check ebay.

PS: Sorry about your loss.