It's like nothing I've seen up 'till now? Where did they go?

Hi Gang,
I have had numerous tracks throughout the set areas of the traps, and on the traps. I finally noticed that my traps were set too heavy, and now it's like there is absolutely no tracks in existance the last couple days.
Could it be the weather? We just got a decent amount of snow, (about 6"), and it's surely going to hide some tracks, but all of them?
Could it be that the coyotes leave the area for the winter? How about cats?
Thanks so much,
Chris