Well the parent comment doesn't say how many handicap spots were open. Giving Jobs the benefit of the doubt, he may have seen a pattern where there were always multiple spots available. And the spot locations don't come down from God either. They are decided (at least in the state where I live and have worked on this subject (a work parking lot)) in an arbitrary fashion in order to meet certain requirements. It's (once again where I am) a loose specification for placement. And you can always exceed the number required. For all we know Apple could have put in more spaces than required and Steve was simply taking advantage of that knowing that nothing would happen. And that he further didn't care about any fine he received assuming the Police even had normal access to that part of the parking lot when they were on patrol.

Edit: Further to my point it's easy to assume "arrogant big shot rich guy" just hearing a story like this.