In south Georgia, we get love bugs twice a year, once in spring and again in the fall. Words cannot describe how evil these things are (just google it) but they will absolutely coat the front of a vehicle and will eat away the paint if you don't remove them. I've read a million old wives tales but none of them ever worked for me. I've found the best thing is preventative maintainence. As soon as I start seeing them, I'll wash and wax the front of my vehicle. This makes them easier to remove them. Then I'll wash or wipe them off the nose of the vehicle at least once a day. I'll usually apply a coat of wax every couple days at a minimum.
Funny this post came up as I saw a couple of love bugs yesterday. These evil SOB's usually last about two weeks. Thank God it's not any longer!