That liquid stuff is called "brine" and it is worse then salt.
They have been using this on our roads up here in Ontario for a few years now and
is something else to remove from your car/truck.
I would highly recommend that if you have to drive in this liquid for any length of time that you
cover your chrome and aluminum with something like petrolium jelly to protect it.
It will look like crap all winter but will be just as new when you clean it off in the spring.
It is also very slippery if they spray it down at night and it warms up quickly in the morning unexpectedly as we found out the hardway last spring.
Just my 02.

Kent.