My recommended route for you mate.Thx srv
https://www.google.com.au/maps?sadd..._0d-nBBCA&t=h&mra=dpe&mrsp=1&sz=15&via=1&z=15
They open up the back gate of the school to let folks out. So getting there earlier and being buried 'deep' in teh carpark is the best option for a quick get away. Then you need to navigate the backstreets to get back on Trimmer, turn right onto Tapleys and you're away.