Assuming you have a 36 month lease, that's $612 to flatbed it about 400 miles. Off the cuff, that seems reasonable enough if you're happy with it.
FWIW, when I bought my Bolt, the dealer drove it from NJ to Syracuse. It had about 200 miles on it. That's easy to do with a fully charged Bolt. 400 miles in a 151-mile Leaf would give the dealer a run for their money, just trying to make the trip!
2011 Torqeedo Travel 1003 electric outboard on a 22' sailboat
2012 Leaf SV (traded for Bolt)
2015 C-Max Energi (302A package)
2017 Bolt Premier