Golden Egg Clues

The City of San Mateo's Name
Commemorates the Egg's Golden Games.
An amazing prize awaits the one,
Who finds the egg when the search is done!
CLUE #1
Hey everybody, let's have some fun.
Look for the egg, there's a prize to be won.
Just drive down the highway and look to the west
You might find the egg hidden in the nest.
CLUE #2
People get ready to join in the chase,
But try not to wander all over the place.
Just look for the building so new and so bold
Where it was before was too small and too old.
CLUE #3
Our friends in blue have hidden the prize,
Where they have kept it, is such a surprise.
The people who work here don't hang around.
They drive and they walk all over town.
CLUE #4
It's here where you call, when things don't go right,
During the day or middle of the night.
Guess if you can, do you have a clue?
Enter the right answer is what you should do!
CLUE #5
The Golden Egg's hidden in one single space.
Where people once cheered and the ponies did race.
This is the last clue of this guessing game.
The answer each year is never the same.

or submit your answer online!