You should advise your insurance agent of the garaged location of your car. If this is your new temporary address you will need to inform your insurance company of this new address. Likely the terms of your policy requires you to notify your insurer of any change of addresses concerning you and/or your vehicle that is being insured.

You thus need to notify your insurance company of your address change, even if the move is not that far and temporary. If you did not inform them of your new principle address where you garage the vehicle and were in an accident, this omission of information may be seen as misrepresentation on your side and cause your claim to not be paid.

Most state's Departments of Insurance will tell you that the single most important thing you can do to protect yourself from a claim denial is to, make certain that all of the information you provide your insurance company is complete and accurate.