Can I use a stateless form to define several system-wide variables?  

Example:

I have technicians in several states and I want them to see only the service tickets in their state.  I believe that I can set a filter based on their user name, but I need to set the filter based on the state.

So, can I get the user to select a state from a dropdown and pass that variable to the filter in the report?

As an extension of that, can I create custom groups ex: Techs/Virginia, Techs/North Carolina etc.

Then when a tech logs in, his name would be associated with one state. And to tie in with the first part of my post, Could I use that variable to further filter the subform?