I am not sure how security screening would work at the smaller field stations though. I could be at the ticket counter, then have to go out and work a flight with only a few minutes to spare. All I do is walk thru the back out to the ramp, all I need is my SIDA badge to get into my airlines ops room and from there we have easy access to the a/c. My station really would not work if we had to be screened since we are called upon to do many different jobs in a 30 min period. As for the pilots who come thru at my airport, they just walk behind our ticket counter, we verify there badge with the flight release, then we let them in and they just walk across the ramp skipping TSA altogether at my airport. Not only is it allowed, it seems to be the most common method where I work.
I always find it funny that if we are flying anywhere right after work, we have to go back in thru security. We could easily just bypass all of it and walk right thru and board a plane... obviously a massive no-no and I would never do it, but it could be done.