[travelin texans]

I would agree with everyone, they appear to be normal, the brake adjustment plug is on the bottom as it should be on the ones you can see. If the axles were upside down that plug would be on top as the backing plate bolt pattern only fits one way on the end of the axle tube.
If your tires aren't wearing abnormally then I wouldn't be too concerned, but I would probably find a different person to do the work if he can't tell the difference. If they are wearing I'd find an alignment shop to have them aligned.
I would also question whether they actually packed the wheel bearings as the location of the magnet would've been VERY obvious it was in the wrong spot if they did in fact remove the hubs to pack bearings, if they just pumped greased into the hubs from the spindles, if equipped, then that's NOT packing the bearings. Plus adjusting the brakes after packing would be PITA to do from the top inside of the brake plate from underneath.