Can't say that I have...but you should have kept your stock air box and thrown it back in before taking the car in...sorry. Don't let them screw you over on the MAF. See if you can hold off a few days for a used one to be shipped to you, or contact Greg V at Quality Nissan in Temecula, CA and see what price he can give you on a new one. I think the dealerships charge 2 hours labor for installing one of those, which as I'm sure you know since you (hopefully) installed your CAI, it'll take you 5 minutes, 10 minutes max if you're a sloth, to switch one out. Good luck.
a cai will not destoy a maf unless you suck water into the intake pipe or over oil the filter element. All dealers blame a cai for failure when it comes to the maf going bad. I would just order a maf from a whole sale parts dist or buy one from a wrecked spec v.