Deer will get used to anything that is routine

If an army tank regularly drives through the property where you hunt, they'll get used to that. If it's not a regular occurrence and it's something out of the ordinary, they won't.

I've had deer on my camera an hour after I've left. I'm convinced they got used to hearing me drive up and drive away. In fact, I now sometimes purposely drive up early in the afternoon, drop some bait, and drive back off to the edge of the property and walk back in.

Always see deer.