You came across a fantistic find, but like it happens sometimes, the gift may come with conditions - in this case cigarette smoke. I like the dryer sheet idea and have used it a couple of times. I used to smoke and didn't realize how bad the cigarette smoke reeked until I quit. I started to make a cheater cloth quilt for my daughter and could not stand the odor, so I had to wash every piece of fabric I had in my bedroom. However, since you are having a drought and would prefer to ration your water usage, I owuld suggest letting it air out, fabric softener sheets and time.
I am in the process of making this year's family reunion quilt, didn't have enough in my stash for a backing and no money to buy any fabric. When I moved from a house to a 2 bedroom apt., my best friend "inherited" most of my stash and she remembered a large piece of blue fabric with ducks that she knew would be large enough. I didn't bother to smell the fabric, since I'm no longer a smoker, however, her roommate is. I had dampened the fabric to make it easier to iron and then the cigarette smell became evident. It's too late at night to wash it, I'm on a tight deadline, so picture me washing 9 yards of fabric (in 3 yr. pieces) in my kitchen sink with Dawn with the orange scent. I draped the fabric between the safety bars in the tub, spritz the fabric with Febreeze fabric spray and crossed my fingers. In the morning the fabric was just damp enough to press and the smoke smell was gone. So, in my case, Dawn detergent, orange flavor and Febreeze did the trick. Best of luck.