Comprehensive Liability Insurance How "illegal" Would It Be To Add Comprehensive Auto Insurance A Day After Hitting A Deer, Then Making A Claim?

How "illegal" would it be to add comprehensive auto insurance a day after hitting a deer, then making a claim? - comprehensive liability insurance

I am now 25 and never had something like an accident. So naturally, I only carry liability insurance for my car. Well 2 nights ago, I hit a deer on the way home, causing moderate damage to the front. As would be "illegal" if I had to add my blanket insurance, then a few days and I waited a claim?