If your car has magnasteer (do you have traction control? or stabilitrak?) then yes you could. But depending on their tool they may not realize they can. On my autel its under service > steering angle sensor or something odd
On tech 2 its under special functions for the Chassis system, and I believe its named Magnasteer Calibration or something.
Its incredibly easy, takes longer to navigate to it on a tech 2 than to actually change it.
on cars with Gran Touring, it was set to firm factory. On all other park avenues with Magnasteer, it was set to Base (which means all park avenues have a softer steering potential if they have magnasteer)