So I was poking around to see if there was a mod/trick to see if this could be accomplished, living in FL this would be great, what I found out was that some cars already have this capability by hitting the unlock once then again and hold it down, here is the list on Cnet,
Acura (MDX/TL/TSX/ZDX)
Alfa Romeo (159)
Audi (A1/A3/A4/A6/A7)
BMW (3 Series/5 Series/6 Series/7 Series/M5/Z4)
Chevrolet (Corvette/Equinox)
Chrysler (Sebring/Town & Country)
Dodge (Challenger/Charger/Durango/Grand Caravan/Journey/Ram)
Fiat (Bravo)
Ford (C-Max/F150/Focus/Focus Ghia/Fusion/Galaxy/Mondeo/S-Max/Taurus)
Honda (Accord/Accord Crosstour/Odyssey/Pilot/Ridgeline)
Infiniti (G25x/G35/G37/I30/I35/M35/QX56)
Jeep (Grand Cherokee)
Jaguar (S Type/XF/XJ8/XK8)
Lexus (ES300/GS350/IS250/RX300/RX350/RX400h)
Lincoln (LS/MKX/MKZ/Zephyr)
Mazda (6/CX-9/MX-5 Miata)
Mercedes-Benz (B180/C240/C300/CLK350/CLS550/E350/E430/E500/GL450/ML550)
Mini Cooper (Clubman/S/Mayfair)
Nissan (350Z/Altima/Armada/Maxima/Murano/Pathfinder/Titan)
Opel
Peugot (508)
Saab (9-3)
SEAT (Leon)
Skoda (Fabia/Octavia II)
Toyota (Prius)
Vauxhall (Insignia/Vectra/Zafira)
Volkswagen (Beetle/Golf/Jetta/Passat/Polo/Routan)
Volvo (C30/S40/S60/V50)
Link
Acura (MDX/TL/TSX/ZDX)
Alfa Romeo (159)
Audi (A1/A3/A4/A6/A7)
BMW (3 Series/5 Series/6 Series/7 Series/M5/Z4)
Chevrolet (Corvette/Equinox)
Chrysler (Sebring/Town & Country)
Dodge (Challenger/Charger/Durango/Grand Caravan/Journey/Ram)
Fiat (Bravo)
Ford (C-Max/F150/Focus/Focus Ghia/Fusion/Galaxy/Mondeo/S-Max/Taurus)
Honda (Accord/Accord Crosstour/Odyssey/Pilot/Ridgeline)
Infiniti (G25x/G35/G37/I30/I35/M35/QX56)
Jeep (Grand Cherokee)
Jaguar (S Type/XF/XJ8/XK8)
Lexus (ES300/GS350/IS250/RX300/RX350/RX400h)
Lincoln (LS/MKX/MKZ/Zephyr)
Mazda (6/CX-9/MX-5 Miata)
Mercedes-Benz (B180/C240/C300/CLK350/CLS550/E350/E430/E500/GL450/ML550)
Mini Cooper (Clubman/S/Mayfair)
Nissan (350Z/Altima/Armada/Maxima/Murano/Pathfinder/Titan)
Opel
Peugot (508)
Saab (9-3)
SEAT (Leon)
Skoda (Fabia/Octavia II)
Toyota (Prius)
Vauxhall (Insignia/Vectra/Zafira)
Volkswagen (Beetle/Golf/Jetta/Passat/Polo/Routan)
Volvo (C30/S40/S60/V50)
Link