I'm back! I guess I didn't take the loaner because Nissan would have paid, but it would be through a rental car company and I didn't want to hassle with them if I was in a fender bender. It would have been an added nuisance and I generally don't trust rental car companies. You seem to sign your life away every time you fill out those forms.
Anyway, I heard back from Customer Service today (Brenda) and she was great. Since Wednesday, she contacted both the dealer from whom I leased the Leaf (Sheehy) and the dealer who is working on it (Rosenthal). She had Sheehy call me about 1) ending the lease or 2) getting me in new car and they seemed both sympathetic to my situation and interested in resolving it. She also indicated that Rosenthal seems to have fixed the original problem, but now it won't accept a charge. So a new on board charger (or whatever it is) is being delivered and installed next Tuesday (2/19) and who knows, maybe it will solve the problem and I'll be on the road again, listening to the Grateful Dead channel on XM. I feel better about the situation now because it seems as if I will either have my Leaf fixed and ready next week, or I have the option to perhaps end the lease or get a new vehicle. I think Customer Service shook some trees, and the response I received was encouraging. Either that or I'm in the early stages of Stockholm Syndrome and I'm starting to like my captors.
Also, Nissan said they would compensate me for my lease payment for the month, along with what I'm paying in car insurance. And I didn't even have to ask. Things are looking up, perhaps. Maybe I won't get that Hummer after all.