If you enter the park later in the day, can you still get in the next day for free?

Unfortunately, NO . They stopped that program in 2017. We found this out just last week .

No you cant they stopped doing it

Nope

You can not

I am a season pass holder for years, and wasn't aware this changed. Not doubting anyone's response, but call customer service to verify. Anytime i have a question, i try to call and get it answered from the place of business.

No you can't

If its late enough and it rains, you may be able to.