Where to put a van during the Cervantes festival

[Mainecoons]

We've lived in Mexico for five years and are finally getting around to the Cervantes festival. We rented a house in Centro that, unfortunately, has absolutely no place to put a car. What we want to do is drive to the house, unload, then take the van to a secure parking facility somewhere on the outskirts that will give us a reasonable rate for a week. Then we'll cab it back to the house and use foot and taxis for the week.

Could anyone who lives there suggest a good parking garage away from the high rates of downtown? We'll be coming in on the toll road from Leon.

Thanks.