Road signs

[BFG Central]

I gave this some thought a while ago.

What about making up a few signs saying
Emergency Food and Water 2 miles >>>>
with an arrow pointing away for where you are based.

If you want to go the extra mile put an extra sign say 1 mile away but set it up a mile and a half away.
The second sign would back up the first sign in the sheepeople.

By the time they get two and a half miles away they will just keep going in that direction.

They just need to look official.
But not to good as these signs would have been made in emergency situation.
Maybe stick on letters on a bright yellow plastic board?

Wouldnt be hard to order some stick on letter off the web without anyone working out what they were for.

Does anyone have any ideas for an official looking Logo??