I haven't personally, but that has been a common problem for sometime now. Check out this site:
There's a section called "The Waiting Room", a lot of which are threads for Texas CHL applicants in various submission months (Feb, Mar, April, etc.) who are waiting on their plastic. However, there is one thread titled "Harris County Applicants", if that tells you anything about the backlog there. Pretty bad hold up from what I hear.