did they give you a printout?

anyone running ~2" of lift should have the LCA mount set as outboard as possible.

..... when they said "it can't be adjusted" did they mean "the adjustment is maxed out and can't go any further" or were they telling you "there aren't any camber/caster adjustments for this vehicle"? if they maxed out the adjustment to get it as close as possible, you're good. But if they didn't adjust anything and didn't give you a printout with the readings, I'd go back.... and if the camber is out of spec tell them to adjust the LCA like they're supposed to.