Comment by bluGill

For retailers I want someone to verify that they are legitimate. I don't want random people in my garage. If someone enters my garage when I'm not home they better really be agents for WalMart/Amazon/target/UPS (as opposed to WolMort/Amozan/targit/USP...) , and whatever company does that does background checks on drivers. Probably they also need to have other cameras in their vehicles so that drivers trying to steal whatever valuables I have are not stolen. (as already pointed out, most people have an unlocked door from the garage to the house)