That wall might not even be a suporting wall.
Once you start knocking it out you shouldbe able to tell if its suporting or not.
Those truses are standard, so it "should" be Ok.
But you wont be able to store much wieght up in the rafters or you could compromise thier integrity by overloading them and your roof could sag or fall.
One of my garages has 24' truses w/ 5/12 pitch, and is 48' long and I have no other suports other then the exterior walls. But my truses were made to have an open floor plan.
Something like this...
If you wanted to us them for a lift mech. then you could sister 2x12s to the rafters/trus that you want to use for lifting but they need to span the entire 24'.
Yeah Tom these laws are changing everyday , and some of them are realy screwy.
Here an inspector has to sign off on everything on new constructoin.