Agreed. The time frame is fine, a fish can be in a bag for much longer than you may think. But you really need to watch for temp swings. It can't sit on your doorstep in the hot sun for three hours, or it will over heat.
I just missed your most recent post. 75 degrees is great, but if the box is sitting in the hot sun for even 15 minutes, you may have a problem. It's best to be there when your livestock is delivered.
DOA means Dead On
Arrival, so this is different from a warranty that says if you get your fish and it dies like 4 days later in your tank, you're protected. Many vendors will expect you to accept the package when it's delivered, and not leave it out in the weather for an extended period of time. As
@EeyoreIsMySpiritAnimal said, they may "start the clock" from the time your package is left at your doorstep. Please check the full DOA policy from your supplier.
Can you have a neighbor just bring it inside when it arrives?
And who did you order from?
Best of luck with your order!