Howdy Kiersten!
The main function of those gaskets appears to be preventing the "whistling" sound you're going to hear due to the air-flow around the headlights/between hood as you are driving. Personally, I would recommend that you put the VX in a somewhat warm garage (@ least around 50-60 deg) and apply the silicone and let dry overnight. I think it would be much more work to totally remove the seals and later on wrestle with reinstalling them.
[SIGPIC][/SIGPIC]"If its fast and reliable, its not cheap;
if its fast and cheap, its not reliable;
if its cheap and reliable, its not fast."
If love is blind, why is lingerie so popular?