No food trucks allowed unless the Commanding Officer has signed off on it. You can however set up at the College side across from the base which is far enough not to cause security concerns but El Segundo PD may stop and check you out as they should still
No, unless you have business at the commissary and the food truck is part of the business you are conducting. Be prepared for a thorough search of the truck.
You can get permission to park at the air force base for a short time if you are qualified. The military however is very concerned about enemy combatants in the United States. Be prepared for an investigation to prove that you are not in a foreign army opposing the US.
No.
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