I'm here at San Diego to visit my gf, and I found my back passenger side tire is leaking at the valve stem area, maybe it's loose???? I put in a can a fix-a-flat on i-5 , after I gets here I check again tire pressure drop to below 10 , I am running 275/30/19 at the rear, anyone know where can I take it to get fix in San Diego???????????? I need to fix it to go back to San Francisco, please HELP a brother out!!!!!