If you can swing it actual dark smoked replacement units are the best option. But if you don't want to spend hundreds on new lights, vinyls are the best bet...spray is okay but you have to do it right for it to look good - prep, clean, sand, spray ( _# of coats), clear coats, clean up.
A mild drop shouldn't affect your driving ability too much in winter. .75" to 1.25" is probably considered mild, tho most guys don't care for this level of drop as it's not as noticeable vs stock.
You could also consider coilovers. They'll give you the ability to adjust your ride height to your liking based on the situation.
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.