Get_adjacent_post workaround?

Quick question I am hoping that you can assist with or at least confirm that this will or will not work the way I am trying to use the plugin.

I have a post type with a bunch of ajax filtering – The sort order from the plugin works fine here.

When you click one of the single posts, I am making another ajax call that passes the post ID and loads in the post data in a popover with next/prev arrows to toggle between other posts.

The way I am currently handling the arrows is in the WP Query for a single post where I then use get_adjacent_post() to get the prev/next post objects.

$next_post = get_adjacent_post(true, '', false, 'category');
$previous_post = get_adjacent_post(true, '', true, 'category');

From there I build the arrows using

echo '<a href="#" data-target="'. $previous_post->ID .'" class="modal-prev'. $prev .'">';
echo '<a href="#" data-target="'. $next_post->ID .'" class="modal-next'. $next .'">';

Then in the template I use that data-target attribute to pass the next or previous ID back to the ajax function to load the next post. This is where I am a little hung up as get_adjacent_post() isn’t respecting the sort order from this plugin.

I know you mention using get_adjacent_post_link() but that isn’t going to necessarily work for me because I really just need the ID’s, not the full permalink.

Is get_adjacent_post() supposed to work with this custom sort order?

Thanks in advance.