I can verify this policy was not being enforced after lunch time at Cosmic Rays on 12/1/10. I wasn't even aware the policy had been reinstated until I came across this thread just now. Unless I missed this in the thread somewhere (I didn't read everything), perhaps it's only used during the busier eating periods.

For the record, I hate the policy. I travel often with my children, sans the husband, and having the seat before the food works best for us.