Sprinkler piping is ok to cover.

Resubmit a revised floor plan that matches the actual installation, address mezzanine with ladder with the plan reviewer, repair the exit signs, provide emergency lighting in the "sales" area, keyed hardware allowed on the main exit door only all other doors to have single action "ADA" type, provide annual inspection for all fire extinguishers, provide correct fire extinguisher size in "shop" and mount at less than 5', address the need for the locking door at the restroom corridor with the plan reviewer, provide type, quantity and storage arrangement of hazardous materials to plan reviewer to set maximum allowable quantities.