Another Problem with Australian Bills or Notes

As the Australian Bills are made of a plastic polymer they have a disadvantage to their design. As everyone who has played with plastic Army men know, plastic will melt when heated to the proper temperature. Now then, the problem with the bills is their tendency to melt when heated up. To make it somewhat worse, the melting point of this plastic polymer is quite low (below 150 degrees fahrenheit). These temperatures can be reached in a car that's sitting in the sun. Studies have shown that the inside of a car can reach temperatures of 150 degrees farenheit or 65.5 degrees Celsius.

I ran across this problem a year ago when a relative gave me a ten dollar bill from Australia. What happened was that I left the bill above my sun visor when I went to school. When I got out from school I went to retrieve my bill to show a friend, and low and behold it had melted. It didn't melt onto the sun visor, but had been heated to the point at which it shriveled up. It wasn't hot enough to make it melt completely.

This made me wonder if the Australian Government was aware of this and what can be done with the bill after it has melted? Is it still good? If not may I go trade it in for a good one or did I just waste a ten dollar bill because they won't replace it? I had to learn the hard way to be aware of where I leave any of this new money made of plastic. I still have that shriveled up 10 dollar bill from Australia if anyone is wondering.
Note: This Writeup re-noded @ the request of Darksnake... damn quitter.