so i got my new lip on saturday, that night i put it on, i used 4 self taping screws and some double sided tape. so on sunday me and a few friends decide we want to drive and hour or so to this beach in RI. Get there fine, not scraping it or anything. park the car for the 3 or 4 hours we are there then i leave the parking lot get into second next thing you know it drops and i run it over. Did i put it on wrong?? Should i use bolts intead of screws?? please help i would like to get it on again tonight.