Usually in this instance assuming the coyote didn't spot you or didn't like the set-up, you should be able to just squeek him in. It might be with a little $6.00 mouse squeeker or just a squeek from your lips. that will usually get them interested and possibly come back. Also to build a little volume in the squeek I put my hands around my mouth or some hunters put their lips to their hands, either way works. For further reference if a dog comes in on a slow trot, pick out an opening where you can shoot him and just whistle to the dog when he gets to the opening. he'll more than likely lift his head and look back and forth, giving you the oportunity for the shot. Also another popular way to stop a dog is a simple bark of your mouth. I hope this helps. Good hunting!
Gray fox- 17
Mt. Lion-2 (Season Limit)