There are so many thing wrong with this it’s hard to know where to start.
A committee can’t give exclusive use of common property – that requires a 75 percent vote at an AGM.
Also, you simply can’t re-assign visitor parking to exclusive use of a resident for a number of reasons.
Strata committee votes – even strata by-laws – definitely don’t supersede council zoning.
Sack your chairman, and at the first opportunity. If not for misusing his position, then for the potential legal hassles you will face in the future as you try to undo his handiwork.
Meanwhile, get in touch with your strata manager’s head office, tell them you have been given advice here on this website and ask for another strata manager to be assigned or, at the very least, that the current one gets a little attitude adjustment and retraining.
That’s easier that trying to prove a breach of contract.