[jaydee]

A guy I knew quite a few years back used to be a Ranger then did this job for a while.
He got very bored, setting up in a location (not of his choosing, gets a list of when and where by his supervisor), then sits there for up to four hours at a time.
Then go to another spot.
It's early starts and shift work, pay was ok for sitting on your rse(not sure exactly) and shift penalties.
Get ready for lots of abuse, because to be honest, it has nothing to do with road safety.
It's all about going to target rich environments and anything a couple of kays over gets flashed. I don't know what it is, but not much tolerance.
Yes they had an emergency button for Police help, don't know about reinforced glass but wouldn't surprise me as people used to chuck bottles at him as they drove past.