By far my largest job in 22 years of cleaning

[encapman]

You could put the chair mats back down a few hours after cleaning. Normally it takes less than 2 hours for the carpet to dry after encap cleaning. But to insure the moisture has sufficiently dissipated, you could perhaps double that to 4 or 5 hours, just to err on the side of caution.

P.S. Sounds like you came up with a nice format for getting the work done! Kudos