Contacted Ford Customer Support yesterday. The person I talked to seemed suprised that the Ford remote start (without push button start) shuts off when any door/hatch is opened. After a while of researching and calling other departments, it was found that the Ford aftermarket remote start system WILL SHUT OFF when any door/hatch is opened. So it looks like I'll be getting a Viper to replace the Ford system, I'd rather do that now than replace a starter in the middle of the winter. Just thought I'd let everyone know in case they're thinking of getting one.