How long would Indian and Thai curry dishes keep in my cooler?

I've decided to be vegetarian, and curry items made by Indian and Thai restaurants are my favorite and will make this transition easy. I don't need the meat to love the flavor and especially Indians have a lot of vegetarian items. Ok, too much info, but my chooler is 3 degrees ambient temp. So if it is 80 degrees inside my truck, it's only 50 ib v the cooler. How well, and how long would these foods keep in that temp? If I buy say once per week, would I be ok?