Fill your downtime with work to fill your pipeline.
Unless you plan on selling freelancing services related to anti-surveillance work (Security, building an audience in the area) really filling your time with anything but sales is going to hurt in a years time
I assumed with the reference to starting freelancing (s)he referred to "time I normally would have spent at work but now cannot bill (i.e. 9-5 M-F) as opposed to "time that never used to be work (i.e. Sleeping, weekends etc)"
Otherwise the freelancing comment would have been superfluous
Unless you plan on selling freelancing services related to anti-surveillance work (Security, building an audience in the area) really filling your time with anything but sales is going to hurt in a years time