On the F-Body (Camaro / Firebird) the Camaro has the auto headlight function, but the Firebird doesn't since they are pop-up lights. The exception for this is Canada since they require all cars to have auto headlights (so I've heard). Due to the Canada laws, the Firebird shares the exact same wiring ... with the auto headlight feature disabled in the US, but enabled in Canada, eh?
It can easily be disabled on the Camaro following the exact same method that GM uses for dsiabling it on the Firebird. Unplug the sensor and shove a piece of wire in there, cover with electrical tape. OK, so maybe GM has a specific plastic cap they use, but the principle is the same.
I can only imagine that the Intrigue would use the same method. Simply unplugging the sensor would have the effect of making the lights come on all the time. You have to complete the circuit to turn them off.
Your milage may vary ... but on the Camaro, I shunted the sensor connection and never had a problem. Looking at the wiring diagram for the F-Body, it shows the Firebird "delete option" for USA sales ... shunt it. When I got the Firebird, I took a peek and there was a jumper in place of the sensor.