aero blades more fragile?

[Dave Fain]

In my part of Colorado, the police will ticket you if they catch you doing
this.  They are tired of looking for stolen cars that were left running in
somebody's driveway with the keys in them.
Dave

>I guess nobody goes out, turns on the car and leaves it running for ten
>minutes while they are inside drinking coffee? Makes it 10-times easier to
>clean off the ice and snow with a snow brush. No chipping at all.