overeating

UGH!!! Woke up this morning and found all three horses in the grain room! They'd ingested about half of a bag of Omolene 100 and another half bag of Equine Adult!!! Ack!!!.

To walk or not to walk? That is the question. What do you do when you suspect your horse of potential colic? Do you walk him? There's conflicting research on this, and I'd like to know what you all think.