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.