my 03 wont turn over but powers up?

[Rufcar]

I took it to dealer 40 mi away this a.m. They called and said the security computer is out and I need 2 new keys total L+M 1450. Parts come in 4 days. I asked can they disconnect it all and run standard keys only they said no. I am betting yes but a dealer cant do that. Am I correct?
BTW where is that security computer located? Under the seat? Jim