On 10 January 1984, Warren Air Force Base in Cheyenne, Wyoming, recorded a message that one of its Minuteman III intercontinental ballistic missiles was about to launch from its silo due to a computer malfunction. To prevent the possible launch, an armoured car was parked on top of the silo.
I don't believe this one. First, an armored car with a 15'+ wheel base would be required, and second armored cars available for this kind of operation could be as far as 45 minutes away. If the missile is going to launch terminal countdown starts at T-30 seconds. Not enough time to stop a launch in that manner.
This video will give you a better idea asto how the silo closure is withdrawn. It's about 2:05 minutes in.
Does this look like a 15'+ wheel base?
