Besides the fact that most US auto insurance policies do not cover a trip into Mexico, it is the law in Mexico that anyone driving a car should have Mexican Auto Insurance. So, for those who find they need to cross into Mexico from the USA at the Otay Mesa border crossing, I checked to see if Mexican Auto Insurance can be purchased in this area. Though there may be more, I found only two places. One was in a "Food Mart" connected to a gas station and the other was this, La Rosa Insurance Agency.
They are opened Monday through Friday and Saturday until 2:00 pm. They are closed on Sundays.
The price of a days insurance depends on the value of the car you will be driving and they will not "fully" insure a car older than ten years. At present the price for "liability" only is about $17.00 and "full" coverage about $20.00. If you need more than one days insurance, they will discount the price.
They will give you a quote over the phone if you call with all the details.
"Truck Stops" are places along a trucker's route that offer a variety of services for anyone "on the road." Restrooms, fuel, food and usually a friendly welcome.
While taking a trip out to Otay Mesa border crossing to find out if Mexican auto insurance could be purchased near this port of entry I stopped at a couple of Truck Stops for information. They were very nice and unusually helpful and at this place I found another business within the Food Mart. ServiMax was the name of the place inside, and it offered a variety of services, check cashing, casa de cambio (selling and buying Pesos) calling cards and even copies and fax services, most importantly for my interests, they also sold Mexican car insurance.
The ServiMax was closed for the weekend, but in time, as this area develops more, I'm sure that they will eventually stay open 24/7. Until then, keep in mind that you might have to go to the San Ysidro Port of Entry area to buy Mexican insurance for your car. Of course, when you return to the USA you may pass through at Otay Mesa. A good thing, as the long lines are not usually found going into Mexico, but coming into the USA.