Insuarnce policies normally note the date and time the insurance began. If you bought the insurance after the accident occured, it likely will not cover the accident damages if you were at fault. Look at the policy or ask your agent when (what time of day) the coverage began. IF you did not have insurance, then you likely will get a letter from DMV that will say your license will be suspended unless you provide proof you have insurance by a given day (normally 10 days or so after you get the letter - and the letter comes by US mail so watch your US mailbox for it). But providing the proof PRIOR to the 'effective date' of the suspension listed in the letter will result in NO supension.
It is possible, if your insurance was not in place at the time of the accident, that your friends insurance was still vlaid and as a 'permissive driver' you should be covered.
In court, if you did not have insurance at the time of the accident but do have it by the court date, many prosecutors will still want a guilty plea to no proof of insuance charge, but the fine will be less because you now have insurance.
Answered on Jan 18th, 2021 at 9:01 AM