I'll second what Jeff said, I did the exact same thing recently - hooking a bungee to the lock latch. I stretched the other end of the bungee to hook onto the child safety restraint.
I'm still not exactly sure what actually worked to unlock it, lol. I know I pressed the unlock button on the keyless remote which didn't work. I tried a few things, maybe it was first closing all doors and locking everything using the remote, then unlocking?
Canadian with a US 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Big grin, enjoying my first BEV