After a little more research, I think this program needs some refinement. It seems dealers are just stringing them along, taking the program money and pocketing their factory incentives too. For example, here's a web offer from Coastal Nissan that's virtually the same as the program offer:
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'12 SL last reading @ 2 yr, 22k, 260 GIDs, 62.35 Ahr
'15 SV w/QC, Mfd 5/14, Leased 8/14, 292 GIDs, 64.38 Ahr when new
@ 25 months, 25k, 267 GID, 56.88 AHr
@ 36 months, 34k, 270 GID, 57.49 AHr6.72 kW Array