Some of us have purchased a jack and a spare.
(I would recommend to get a tire tote also)
Here is the thread to follow.
Spare - Jack - Wrench - Jack Points
The goo does not ruin the wheel and sensors, but it does gum them up requiring a clean up. So in addition to repairing the tire you would have to pay to clean up the wheel and tire pressure sensor. Some one was told it would add $130 more to the repair.