Adjust “home” address in Apple Maps without affecting Autofill, etc

When I ask Siri to “direct me home,” I really mean that I want her to take me to my parking spot, which is about a block away from what Maps considers to be the location of my building. Due to one-way streets this can actually make a significant difference to the resulting navigation directions. I considered updating my contact card “home” address to the address of my lot, so I am able to continue to ask Siri to “direct me home,” use the “Home” button on CarPlay, etc. But I still want any non-maps-related services (such as Safari AutoFill) to know my real residential address. Is there a way iOS can distinguish these two concepts?