Prevent bulk closing of ticket dependent on field value.

We have a scenario where we bulk close a number of requests that come through in a given month. The support is paid on a subscription, and we do not need to bill back for work logs / time spent on those requests. However, there are some instances where we need a request to get some special attention before close due to a licensing purchase. We have a custom field for number of licenses and license cost, but I would like to know if there is a way to basically have a bulk close operation stop, or ignored, for requests where a field for licenses is > 0 or either field is anything other than null.

The workflow we would like is that the front office secretary bulk closes 100 tickets. 3 of those have a field "# licenses" set to something > 0. 97 tickets close, the other 3 do not and can be reviewed by the office secretary to bill accordingly for those 3 licenses.