In the next weeks visitation, I quickly went to work. I removed everything out again and cleaned it all up again. It's amazing how quickly the dust accumulates even when covered. I began spraying.
Emboldened by the results, or fogged by the paint fumes, I proceeded to spray the back of the compartment. I wanted to meet up with the floorboards but the can quickly decided it had produced enough. Looks like it's time to get a few more cans. It would have been smart to buy more than a can at a time, but then again I didn't. Draw from that any conclusions you wish.