You said you gave them a 30 day eviction notice. Should that not of been a 30 day non-renewal notice? Wonder what your wording was because if it was just a non renewal than it is not an eviction, yet.
That said I believe if it is just a non-renewal, not an eviction, then you have the right to post a 24 hour notice (check your state law) that you will be going into the home to make repairs. I do not believe they can tell you no, unless they come to the door and say no. In that case not sure.
Possibly forget about calling and post your notice that you will be coming in to do painting. In my state keeping everything sealed, in case of lead paint, meets the requirments. I know this as my husband is in charge of this for our state.