I would order a sim kit from Amazon, just to be safe. Otherwise, I would place the cricket order online on 6/17. Verizon should prorate your bill for the few days you're on it following the expiration of your contract.
Opened vials of the following insulins and mixtures are stable for 28 days either at room temperature (defined by manufacturers as 77 to 86 degrees) or in a refrigerator (36 to 46 degrees): insulin glargine (Lantus), insulin glulisine (Apidra), insulin aspart (NovoLog), insulin lispro (Humalog), Novolin-N, Humulin-N, Novolin-R, Humulin-R, and ...
After all, the only difference between opened insulin and unopened insulin is that little cap over the stopper. Yes the stopper is more porous but if the bottle is sitting in the fridge unused I suspect it has quite a long shelf-life in the refrigerator. We used to keep backup bottles for months at a time. But every time you draw from it, you not only inject air and potentially contaminants into the bottle but may slightly change the mix of ultralente and semilente insulin. So the more it's used, to me, the more likely you need to shortcut the life of the bottle.