I’ve read that the acid from love bugs can erode your car’s paint within 24 hrs so it is best to remove “bug guts” as soon as possible! The bugs are attracted to light or white colored cars, houses, etc.
The best preventative measures are to drive at night when the love bugs are dormant/sleeping.
Wax your car so they won’t stick to paint
Apply baby oil, cooking spray, or get a leather /net car cover for grill (car “bra”) So the bugs are easier to remove …