And to think that I was part of this disaster... ! It actually stayed on - with only a few times of it moving and pretending it was going to fly off.
The next stop (after dropping the mattress off) was Lowe's where we proceeded to fill the car with 2x4's, 1x4's, 2x10's, 2x6's - and amazingly it all fit with the trunk closed.
Who knew how similar a car could be to a truck??