Freakz,
As Aah78 said, maybe some states in the US do not let people drive on IDP / Indian license.
Forgot this point! Sorry.You may want to double check on that.But I have driven around in Illinois,Wisconsin,CA,UT on my IDP.
But sadly though for me in esp. in Illinois, Enterprise always insisted on the IDP.
Maybe Am wrong
But guys, dont you need your flight tickets to get the IDP?
Cheers