If your readings are accurate, even though they are still within the tolerance, I wouldn't want my truck running with those kind of camber readings. You can't really blame the alignment place, as they will say, and rightfully so, "it's within spec". Now that you have some knowledge, you can get them or another alignment shop to "put it to the preferred" specs.
And the knockouts aren't as big a pain as everyone makes them out to be. You will get charged extra though.
Ian