Please Help with Sick Bromeliad?

I bought a bromeliad at a natural foods store about 2 weeks ago and it's not doing well. It was a gorgeous blood-red color and in nearly-perfect condition when I bought it. I took it to work, a call center with flourescent lighting, because I had seen the same type of bromeliad do well there. I noticed a couple days later it had a "split" on the flower and on one of the leaves right above the soil line (it looks like if you took a knife and slit a few inches). Then the color of the flower started to drastically fade to the brownish-red it is now, with most the flower leaves curling under and looking pretty dry, almost "scaly"...except that it is still that gorgeous blood-red in the middle, lower part of the flower stalk. Some of the leaves are brown and dry and 2 are yellow. I have watered this plant when the surface is just slightly dry, once or twice a week and gave it a tiny bit of liquid fertilizer once. Also, I did leave it in the car on a hot day on accident, but draped a beach towel over it. I'm wondering if that caused all this, or the environment I had it in, etc...I have since brought it home and would appreciate advice on what to do to bring it back to life. I have a patio with a fair amount of sun exposure I can put it on if that's best. Any advice on specifically what happened and the solution would be appreciated. This is what it looks like, but a bit taller:

http://www.ctahr.hawaii.edu/uhmplants/Bromeliad.jp...