So, did they just go on your land to shoot a coyote a second time?
I’m probably in the minority here, but If they shot a deer and tracked it over there I’d be more forgiving because I don’t want a trespasser, but I also don’t want wounded game getting lost. Especially if they have no way to contact you to actually get permission.
I’d just make it known you don’t want them on your land and provide them your contact number or address (if house isn’t on property) incase they wound another and need permission.
Over a coyote, I don’t have much sympathy though.