is the mouse gone?

Hi, I saw a very tiny mouse dash across my room this past Sunday night (so four days ago), and immediately closed up the clearly visible holes or gaps in my apartment with foam tape (though I'm sure there's always more to cover!). Also set 12 sticky mouse traps with tiny peanuts and peanut butter on them on Monday morning.

But no mice have shown up.... Also, no sign of mouse droppings or pee or any noises. What does this mean? Has the mouse gone somewhere else? Should I keep the traps out?

Please help. :(