Would it be feasible to add a Pause Queue feature?

[Shurrikhan]

People would do things like queue while at work/school/etc, pause for their priority queue when they get home, and then a bunch of people doing this would, unfairly, stack up delays for people that didn't do this.

Ignoring the obvious limitations that can be placed on any such system, such as as maximum duration before the pause is broken, making that impossible, how is 72 people in line in front of you different than 72 people in line in line in front of you (where 15 of them just came back from a pause, long or otherwise)?

At worst, it amount to more people in the queue because more people won't have been ejected from it. That higher population of users is something we usually want, because it generally reduces queue times for all but the most inflated role(s).