Agreed that this was entirely intentional. Lanza had 10 round mags. They know that it stops nothing, and it is just another way to restrict your options. Infringement in other words.
Here is an unintended consequence... I had originally planned on purchasing an AR chambered in .22 and was saving up for it around the time these laws arrived. Well, just like the original poster, I couldn't find one online that would sell me one and couldn't find anything in the local stores so one day I was at Wal-Mart diong a milk run and saw a Sig AR in 5.56 that came with a 10 round mag. After thinking about it, and how I had tons of 30 round mags already, I just went for another real AR. Take that Rap Sheet Rhonda!
Glad I did, it's a great rifle and had all the magpul goodies on it. Looking back, getting a .22 would have been pointless anyway.
I'll be fair and say Bud's was courteous about the whole thing, and they do have some AR's you can still buy that are not specifically CA legal but do ship with 10 rd mags. I'm already doing everything I can to convince more people to vote the right way this fall.
I know it's a trip for most people, but DragonMan's in CO Springs says he can order anything for cost + small fee and give legal mags instead of illegal mags.