Traction Control System Related Problems of the 2008 Toyota Corolla

Traction Control System problem

My Toyota Corolla ce sedan automatic, 2008. Mileage 69938. Warranty is out. 04/25/10 while my car was parked I started engine, gas pedal did not accelerate. , engine had low tone & slowly went off. I tried 4-5 times, pressing on gas pedal while engine was on, same result. Finally. I started engine, without depressing gas pedal, I backed up, then, I put gear in drive & moved the car forward, after abt 2 minutes I depressed gas pedal, engine accelerated & drove on. It has been normal ever since. I had previous 2 similar cases but engine accelerated on 2nd try. 4/26/10, I reported it, as manufacturing defect, to Toyota dealer & asked fixing it without charge to me. Dealer had car checked by a technician, he could not diagnose the cause & said I should leave it for complete inspection at $98/hr. I told customer relations mgr I could not pay it. He had the car inspected again, this time by head mechanic at workshop abt 20 minutes. He said car was ok & could not diagnose the cause. 4/28/10 I faxed all in detail to Toyota motor sales USA inc, torrance, CA, dept wc11 (customer experience center). 04/29/10, they emailed "due to high contact volume, we are unable to respond to your inquiry in a timely manner and it may take several weeks to receive a response to your inquiry". 4/27/10, I emailed "Toyota owners member registration" & registered myself as Toyota member. Then, I reported my problem. 05/04/10 Toyota called, a lady asked me to recount my story, again & again, obviously trying to worn me out. She said she had not seen my original report, so I faxed her copy of my fax 5/04/10 & asked her help. 05/04/10, she emailed: I should contact dealership. "if the dealership discovers a warranty concern, all fees will be covered, otherwise you would be responsible for all costs related to the inspection. . . . . " my question to you (NHTSA-dot"= have similar cases been reported to you. What shall I do next ?.