I have gotten a postcard from them, and a couple calls on my cell, but that was last summer.
However, at my lab at work, we have three analog phone lines that we use for testing our remote dial-up lines. They're never used for incoming calls, so it's usually a surprise when they start ringing.
This has been going on for months, so I finally got fed up with it. If you hit option 1, sometimes a salesperson will eventually pick up. (I've had times where no one ever does, and after 5 mins of being on hold, I hang up. I am at work, afterall.)
I try to tie up the salesperson as long as possible. I usually like to do the most stereotypical gay guy impression and see how long it takes before they hang up on me. Another one I like to do is to act very concerned about the warranty and go as far as being excited and thankful that they notified me - and then, after getting them to repeat their speech as many times as possible, I thank them, and tell them I'll stop at my dealership on my way home.
My favorite was actually the shortest one. When the salesguy finally got online, I decided to only speak french to him. At first, he didn't realize it was another language and asked me to speak up. When it hit him that it wasn't english, he just said, "

ing foreigners," and hung up on me.
It seems to me that I read a week or so back that there's some type of legal action taking place against the company, because of the Do Not Call list violations - but since they're spoofing their numbers, people are having trouble getting the company info (since they tend to hang up on you when you press them for info as to who they are).