I've spent a lot of hours scrubbing, scraping, sanding, etc. to remove all of the glue from the inside panels of the car. Getting it off shock towers, inner rocker panels, roof, hatch openings, luggage riser, firewall, and inside the tool compartments was a job. I've still got more prep to do before the inside of the car will be ready for paint, but after about 4 Saturdays, I called it 'good enough' to get a layer of epoxy on top of the newly installed sound deadening mats in the passenger compartment. The hatch area will get the same treatment with epoxy soon.
A video follows, but here are some still shots as well: