> note that they owned the parking, so its moot if they parked on a reserved spot on private property of theirs

Eh, pedantry, but you'll find that building and occupation codes dictate a certain number of disabled parking spots. You could argue that a spot that is ostensibly this, but "everyone knows" is Steve Jobs' spot, is not a disabled parking spot.

(But yes, odds of the City of Cupertino taking any issue with this whatsoever are entirely zero.)