It’s gotten better, but there are not enough wrong way signs on highway/freeway exits. When it’s dark and you don’t know an area well or at all, it can happen. When I was in high school I went to get on a freeway and quickly realized I was heading down the off-ramp. There was no one around or exiting the freeway so I could back up without issue, but it was a formative moment in my early driving years.