Captain
What you need to do is keep your keys with YOU. What you did to lock your keys in the car would have been the same if you had a regular key and has nothing to do with the remote entry system. Your key belongs in your pocket at all times. Think of you and your key as one. If you separate the two, nothing can be guaranteed.
If it makes you feel any better, once you activate the remote start, the car will only run for about 15 minutes.
If it makes you feel any better, once you activate the remote start, the car will only run for about 15 minutes.