Not sure on the newer models, such as yours.. but when I had my '00 E320, the Teleaid didnt triger anything like what you're saying, guess newer ones r different.
I thought it was worth the money for the most part.... got restaurant locations when out of town, when in town I got what restaurants where open late or if I needed a reservation they would do it for me....
In my case, my ex g/f had a car jacking / micky mouse thing going on while in my car, and the Teleaid was activated , all conversatoin in the car recorded, tape forwarded to me afterwards of transcript, and the cops where able to track the car via teleaids gps....
In my case it paid off and would DIE for it to be available in myh 95
