Up til I bought the Mustang, I smoked in my cars. (still smoke in the others, just not the Mustang). Do some regular driving with the windows down after you do a good cleaning inside, should work the smell out. My mom was an ex smoker, with breathing problems, and I could give her a ride in my car that I did smoke in and she wouldn't smell it. (at least she said she couldn't, and with her breathing problems, I don't think she could fake her not smelling it, she had very sensitive breathing issues). Sprays like Ozium and FaBreeze can help eliminate it as well.
2013 GT 6 spd, GT500 mufflers, BOSS quad exhaust, Roush CAI, Barton shifter & 2 post bracket
CS GT-40 Wheels, Hotchkis sway bars, upper and lower control arms, springs (1.1/1.6 drop) and adj panhard bar KONI yellow struts and shocks J&M caster/camber plates,
BMR Upper control arm mount and lower control arm brackets.