[Davisca455]

The only reason that I can imagine why the shop believes that the crank rod journal isn't round, is if they didn't actually measure the crank, but instead applied either multiple pieces of plasti-gauge across the bearing, or one long piece lengthwise to the bearing and then made an interpretation of that data?
Bearing shells are not uniform thickness by design, and the plasti-gauge would show approximately a .0005" (.0127mm) variance.
The mechanic would then have had to screw up some decimal points to report the variance that they did though, but at least that would be believable.