Puppy Needing Rehome, Found running down the middle of Old Mars Hill Hwy

Hello Everyone! This morning I found an adorable puppy who seems to have been abandoned running down Old Mars Hill Hwy. I brought him to the shelter and they do not have any available space. I have taken the dog but CANNOT keep him due to apartment regulations and having three cats. Pictures attached below. The shelter estimated around four months old, looked for fleas and ticks and did not see any (also gave him preventatives), they also gave me all supplies needed and said I could come back for more. if ANYONE is able to temporarily take him till the Madison county shelter has space or would like an adorable puppy PLEASE reply below.