Forcing it into dormancy right now will probably do more harm than good, especially since that plant is most likely still recovering from the stress of being sentenced to Lowe's. Give it as much sun as you can - if it wants to go dormant, it'll tell you. Chances are, your flytrap hasn't even seen a proper winter in its life yet, since most of the plants on the mass market are young ones fresh out of tissue culture. If your plant is still alive, it probably hasn't been in Lowe's for very long, but be careful with it anyway, garden center plants are always weaker than those from reputable vendors. And make sure you check that the soil is correct, I've seen countless CPs potted in garden soil by "helpful staff" at home improvement stores.