You're not actually triggering the popover. You can do that by calling popover('show')
:
$("#min-allowed-price .bar-label-shape").popover({
offset: 10,
trigger:'manual'
}).popover('show');
From Bootstrap's Popover documentation:
.popover('show')
Reveals an element's popover. Returns to the caller before the popover has actually been shown (i.e. before the shown.bs.popover event occurs). This is considered a "manual" triggering of the popover. Popovers whose both title and content are zero-length are never displayed.
$('#element').popover('show')