I have a question. Perhaps this is a hoax and has never happened. But the idea might be true. Putting a fake baby in a car seat is something that criminals can do even if it was never “officially” done by a gang. People should be made aware that we live in dangerous times and that something like this should be reported to police. You shouldn’t stop in a dangerous area.
About the eggs and water, the Snopes article doesn’t seem to say anything about this. I have no idea if that is true or not. That part might be a real hoax.
If these things are not happening at all then perhaps it is better not to needlessly scare people. But it is also good to know this type of “trivia”