Personally I'd probably get on the horn and brakes to avoid rather than flooring it if someone decided to do something dumb on the freeway. Of course that depends on the circumstances. You would probably want to rev match or it will be rough on the synchros.
2011 GT, Kona Blue Brembo 3.73
Mods: Airaid CAI, Eibach Pro Kit Springs, Koni STR.T shocks and dampers, BBK Longtubes and X-pipe, Lethal OAPs, GT500 Axle Back, Forgestar F14s 19x9/20x11, Fays2 Watts Link, Barton SS and Bracket