Seriously, you may have the snake on hold, but it is the pet store's responsibility to care for it and treat it until it is in your hands and out their doors. I wouldn't even purchase the snake if they didn't take care of it, and I would also make sure to get the deposit money back. I wish you the best of luck.
Ball Pythons:
0.1.0 Bumble Bee- Schnapps
0.1.0 Pinstripe- Penny
0.1.0 Super Cinnamon- Cleo
0.1.0 Albino- Daiquiri
0.1.0 Low White Piebald- Hershey
1.0.0 Low White Piebald- Reese
1.0.0 Paradox Super Cinnamon- Dash
1.0.0 100% Het. Albino- Jester
1.0.0 50% Het. Albino Jake
The shop has to pay for it. Do not buy it if it has a RI because its going to cost you another $80-100 for the vet visit.
Tho if its just a mild RI you can bump the temps up, and the humidity to get the immune system working better.
I BP i picked up at a show for $20 has a RI. She was just like hissing and had a bit of bubbles iv kept her humidity around 80-90% and her ambient temps around 85 with 92 hot spot. Havent heard her hiss or any bubbles since mid last week. But if you try that be prepared to goto vet if it does get worse