Do Subway's Reward Points Expire?

[SteelCitySouth]

Today I was going to buy a $500 watch. I don't need it but I sure do want it. Since posting in this thread I have decided against it. Instead I purchased $500 worth of delicious subs form subway, so I can give my daughters the subway points in 7 and 8 years for college.

I'm going to go down to subway headquarters later in the year to discuss converting my daughters 529 plans into subway points as well.