Help needed with setTimeout function

My website uses the responsive image slider from slippry.com. On the same page, I want to add a setTimeout function that will delay a modal from appearing. Separately, both work fine, however there seems to be a conflict which I can't identify when both are used.

$(document).ready(function() {
// This is what's used to call the slider:
    jQuery('#slider').slippry({
        adaptiveHeight: false,
        controls: true,
        pause: 8000,
        autoDelay: 5000
        });
       

// This is where I setTimeout:
        setTimeout(function() {
          $('#signUpModal').modal('show');
        }, 2000);

});

Any help figuring out what's going on would be greatly appreciated.