SQL temp database full

Ok here is the issue, I create a query that did a massive sort, so the hard disk that have that database become full, now What to do:

1. Restart the service and wait for the original database where the update was done to recover. 

2. cancel it and wait (i dont know if cancel will work, because there is no space to do the cancel either).

3. other solution??

I can see using the query

SELECT SUM(unallocated_extent_page_count) AS [free pages], 
(SUM(unallocated_extent_page_count)*1.0/128) AS [free space in MB]
FROM sys.dm_db_file_space_usage;

that there is still free pages and free space, but it doesn´t move on the time.  

Gilberto H.