Once an animal is in your possesion and has been in your home, it is a captive by definition! DO NOT RELEASE IT! It can very easily pick up any foreign bacteria/pathogens from your exotic collection that they might be immune to, but your OK native herpetofauna hasn't encountered before.
If you see a wild snake, either collect it with the commitment to keep it, or leave it alone.
I'm sorry if you don't like what I am telling you, but you are the one that addressed the legality issues, so I replied.
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Diego
SNAKES
1.2.0 Corn Snakes (Different morphs)
1.1.0 Hypo Everglades Rat Snakes
1.1.0 Trans-Pecos Rat Snakes
1.1.0 Salt and Pepper Bull Snakes
0.1.0 Amel Pacific Gopher Snake
2.1.0 Sonoran Gopher Snakes
0.1.0 Amel Sonoran Gopher Snake
1.1.0 Mexican Black Kingsnakes
1.0.0 Gray Banded Kingsnake
1.0.0 Hypermelanistic California Kingsnake
0.1.0 Albino High White California Kingsnake
0.1.0 California Kingsnake
1.1.0 Thayeri Kingsnake
4.2.0 Rosy Boas (Harquahala, Mexican, Temecula, & Mid Baja)
1.1.0 Kenyan Sand Boas
0.1.0 Indonesian Dwarf Pacific Boa
1.1.0 Cape York Spotted Pythons
1.1.0 Western Hognoses
1.1.0 Red Sided Garter Snakes
LIZARDS
2.0.0 Bearded Dragons
0.1.0 Eastern Collared Lizard
1.0.0 African Fat-Tail Gecko
0.1.0 Merauke Blue Tongue Skink
1.4.0 Leopard Geckos
1.0.1 Yellow Niger Uromastyx
1.1.0 Chuckwalla
0.1.0 Banded Gecko
0.0.1 Gold Dust Day Gecko
AMPHIBIANS
1.0.1 Green Tree Frogs
1.0.0 Bubbling Kassina
0.0.1 White's Tree Frog
0.0.2 Gold Frogs
1.0.0 Fire Salamander