False is for it being a Free driver. Its not a problem.
Its good it recognizes it and offers a driver.
You should be able to select that then:
sudo mhwd -i pci network-broadcom-wl
But without any connection you may need to either point it at an existing cache or manually get the packages and move them over.
Basically what that profile would do is install broadcom-wl-dkms and then
modprobe -r b43
modprobe -r b43legacy
modprobe -r ssb
modprobe -r bcm43xx
modprobe -r brcm80211
modprobe -r brcmfmac
modprobe -r brcmsmac
modprobe -r bcma
modprobe wl
(to disable other ‘competing’ modules and enable the desired wl)
Your best bet of course is to find an ethernet chord or to use another device in tether mode.