Hello Matt,
Please forgive the delay in the reply.
It is possible that there were "residual fibers" present in the space and the concentration is really dependent on several factors including but not limited to the initial concentration, how long you were present in the space, and the ventilation/air exchange in the space.
Although I cannot say that your risk is absolutely zero, your risk is very close to zero in terms of life-time risk of asbestos related cancer.
Asbestos fibers from indoor sources may pose significant health risks--including bonded asbestos, when/if sheets/materials are broken and fibers become airborne.
Lastly, we welcome these types of questions in the Medhelp.org forums because invariably, you are not the only one with this type of concern, question or experience.
~ Dr. Parks
This answer is not intended as and does not substitute for medical advice. The information presented in this posting is for patients’ education only. As always, I encourage you to see your personal physician for further evaluation of your individual case.
Thank you for your reply, Dr Parks. I really appreciate it. I cannot praise this website enough for the service it provides. I think anxiety got the better of me but you hear so much about asbestos so it is hard not to get a bit carried away, no matter how minor the exposure. Thanks again for the detailed response and taking the time to reply. I do appreciate it.