wow, that's nuts.
when i first got my 550, due to heavy tree cover when i activated assist after delivery, it did not connect. i pressed it again and heard nothing for 5 minutes. i pulled it into the garage. a few minutes later 2 local police units showed up at my house. since the call didn't go through, they assumed it was an emergency.
i activated it the next day at my dealer....if the car had a problem, i wanted the dealer to explain.
but, they did respond.