Exercise After Laser Face Resurfacing?

Laser resurfacing causes inflammation of the facial skin. Inflammation is the process that initiates new collagen production to correct wrinkles and scars.
Inflammation is accompanied by the growth of new blood vessels and this new vascular response causes redness and flushing.
Exercise also causes vascular flushing so as a matter of comfort I would wait until after your skin is no longer pink after laser resurfacing before exercising.
Be prepared for facial flushing with exercise after laser resurfacing. Cold compresses can reduce flushing after laser resurfacing when exercising.

I recommend that no vigourous exercise for 2 weeks. There is no harming in a brisk walk. 
Best Wishes 

You should wait at least a week until your skin has recovered from fractional CO2 laser resurfacing.  You should avoid becoming too red or hot with exercise since you would probably have some discomfort.