Surely if the Strata have appropriated owners parking spaces that are assigned to individual lots to use as access to the Strata then the strata must have passed a Special Resolution bylaw to obtain these parking spaces AND obtained the lot owners written permission from those who lost their parking spaces.
If this was not done surely the lot owners who have lost their parking spaces can go to adjudication to have them re-instated which is well within the power of an adjudicator.
Strata CANNOT seize lot property without the written permission of the lot owner affected.