An argument can certainly be made that the school is simply perpetuating a non-conforming situation which was inherited from the District Office before it. The only fallacy in that logic is that in order for a non-conformity to be legally protected, it needed to be legal at the time it began. The relevant NYC Administrative Code section predates the use of the Courtyard by roughly a century.
Unfortunately for those in Carroll Gardens, and for lovers of logic everywhere, the DOB sent inspectors out to look for a violation...on December 30th, 2009; a date when all schools, public and private, were closed. Shockingly, no violation was found on that date. Unfortunately for us, the DOB and Hannah Senesh, every single day that school has been in session SINCE that date, vehicles have been parked in the Courtyard. If only there were some proof, in the form of an animated gif, or perhaps a video compilation set to some funky, smooth sounds, maybe the DOB would be able to find them in violation...