Your wheels should be pointed straight ahead unless you are:

When parked on a hill or sloping driveway, it is crucial to position your wheels correctly to prevent the vehicle from rolling. Pointing your wheels towards the curb when facing downhill or away from the curb when facing uphill is an essential safety practice. This helps to ensure that in the event the parking brake fails, the vehicle will roll safely into the curb rather than down the hill or into traffic, thus minimizing the risk of accidents or damage.

In other scenarios, such as parallel parking, being pulled over on the freeway, or parking in a parking lot, it's common to keep the wheels pointed straight ahead. These situations don't involve the same risk factors associated with hills or slopes, allowing for a more standard approach to vehicle positioning.