Same thing just happened to me 5 minutes ago for my bike I listed on Craigslist. Said he was sick and could not speak loud enough to talk on the phone.
Same thing just happened to me from number 720-295-8729, although he went by the name of John. He texted me this morning after I had posted my car ad on ksl last night. He said that he wanted to buy my truck for his cousin and that it was going to be a surprise. He said that he wanted to be assured that everything I said about the truck was indeed true. I told him it was, and he asked for my paypal info to pay full price and that he would arrange for somebody to come and pick it up because he was out of town. I told him I don't use paypal, and that's when he started to get really pushy for me to set one up and that it would be impossible for him to pay in any other way, saying he was desparate. He also kept saying how safe paypal is reassuring me that it's government approved. Don't fall for it. If somebody really wants be buy a car they won't be so wierd about it. This is a scam.