I know there are mice about as my dogs are sniffing the car tires. But three nights of peanut butter and snap traps equaled NADA. Not even a nibble. Changed strategy last night and caught three. Will try again tonight with the same "cheesy" bait (I have Nutella in the bullpen if the Fritos fade).
Do be prepared for the 'magic' part being temporary. I seem to remember an old science news item that mice remember food smells, and kept track of which smells are associated with death. Usually this is how they 'learn' what things are poisonous. But when they see compatriots caught in traps, they might associate those baits the same way. So keep thinking of backup ideas for if/when this bait ceases working.
Cats and sometimes dogs pee on tires to mark their territory... I've never heard of dogs sniffing tires being an indication of mice. Where did you come up with that?