I only asked because i went through some part of the highway where part of the toll booth wasn't there, there was a overhead sign that said EZ_Pass but no booths, just a open two-lane highway with i believe a 60mph limit, don't remember exactly
http://www.state.nj.us/turnpike/express.htm there is a flash on the site to what it looks like, if there is no traffic i don't see why you couldn't go 120 through it?