Agreed, if 12V battery drain is the real concern, then swap out the incandescent bulb with an LED equivalent. I think mine uses less than 5w. The 12V battery likely has 1kWh of capacity so it would take a LONG time to significantly drain the battery.
Vancouver, CA owner of a 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
Loving my first BEV