I installed a 240 Volt L6-20 outlet with a refurbished electric meter*
in my garage, for use with EVSE Upgrade
Rather than put the cable on my garage floor, which accumulates a lot of dirt from my dirt road in snow country, and where it would be a tripping hazard, I routed it across the ceiling with bicycle hooks to the front of the LEAF:
Handy to have it out of the way.*
For information about installing a refurb electric meter see the blog post by DaveinOlyWA
It is an easy DIY project for any reasonably handy person.